CN107495392A - The preparation method and corn dietary fiber of a kind of corn dietary fiber - Google Patents

The preparation method and corn dietary fiber of a kind of corn dietary fiber Download PDF

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Publication number
CN107495392A
CN107495392A CN201710664902.9A CN201710664902A CN107495392A CN 107495392 A CN107495392 A CN 107495392A CN 201710664902 A CN201710664902 A CN 201710664902A CN 107495392 A CN107495392 A CN 107495392A
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dietary fiber
mass ratio
raw material
corn
water
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刘竞元
杨映宁
刘潇阳
陈朝银
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Yunnan Bowel And Health Polytron Technologies Inc
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Yunnan Bowel And Health Polytron Technologies Inc
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20Reducing nutritive value; Dietetic products with reduced nutritive value
    • A23L33/21Addition of substantially indigestible substances, e.g. dietary fibres
    • A23L33/22Comminuted fibrous parts of plants, e.g. bagasse or pulp
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/10General methods of cooking foods, e.g. by roasting or frying
    • A23L5/13General methods of cooking foods, e.g. by roasting or frying using water or steam
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
    • A23L5/32Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation using phonon wave energy, e.g. sound or ultrasonic waves
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Botany (AREA)
  • Mycology (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

The invention discloses a kind of preparation method of corn dietary fiber, including pre-treatment, semi-finished product are prepared, purified, post processing.Also disclose the corn dietary fiber that a kind of preparation method by the corn dietary fiber is prepared.The method of the present invention is in preceding processing by the way of thermophilic digestion processing is carried out to raw material, steam explosion is handled, supersound process is combined, raw material mix tissue can effectively be destroyed, its inclusion is set fully to expose, and combine removing impurities and handle, further reduce non-dietary fiber component in raw material, raw material after pre-treatment not only contributes to the hydrolysis result of the complex enzyme of reinforcing fiber element enzyme or cellulase and hemicellulase, make enzymolysis more fully so as to improve manufactured goods purity, and the palatability of manufactured goods can be effectively improved;Purified again after enzymolysis, further improve purity, manufactured goods have the advantages of purity is high;The corn dietary fiber of the present invention also has the advantages of fiber diameter is small, moisture holding capacity and swelliong power are strong.

Description

The preparation method and corn dietary fiber of a kind of corn dietary fiber
Technical field
The invention belongs to dietary fiber preparing technical field, and in particular to the preparation method and jade of a kind of corn dietary fiber Rice dietary fiber.
Background technology
Dietary fiber is a kind of important non-nutritive element, and it is a kind of SNSP and oligosaccharides in carbohydrate etc. Indigestion part, it can neither be digested and assimilated by human gastrointestinal tract, can not produce energy.But in recent years, more and more Research shows that the intake of dietary fiber is closely related with health, and constipation, obesity, glycosuria can be reduced by taking in enough dietary fibers The danger that disease, angiocardiopathy and intestinal tract occur.For example, dietary fiber largely can absorb moisture in enteron aisle, make excrement Soft condition is kept, effectively activates the beneficial bacteria in enteron aisle, promotes beneficial bacteria amount reproduction, creates enteron aisle environmental health, especially Apply to improve prolonged constipation;Meanwhile the dietary fiber content improved in meals can reduce the heat energy of intake, in enteron aisle Digesting and assimilating for interior nutrition also declines, and can also extend food residence time in the intestine, reduce the infiltration rate of glucose, not only The effect of with fat-reducing, and diabetic symptom can be improved.
Dietary fiber can be divided into soluble dietary fiber and non-soluble dietary fiber according to whether being dissolved in water.Many plants Most dietary fibers are non-soluble dietary fiber in raw material and its byproduct.For example, iblet is in process Byproduct corn bran, typically as feed, but due to wherein containing higher fibre composition, therefore used also as system Standby dietary fiber.It is to be modified non-soluble dietary fiber to change into prepare most of soluble dietary fiber in the food industry Soluble dietary fiber.Traditional processing method such as enzymatic isolation method, chemical method, the corn solubility meals of the method production of this quasi-tradition There is the problems such as purity is low, yield poorly, poor taste in food fiber, some even can also cause product moisture holding capacity to reduce, shadow mostly Ring dietary fiber effect.Therefore, a kind of preparation method for the corn dietary fiber that can solve the problem that above mentioned problem of research and development is very must Want.
The content of the invention
The first object of the present invention is to provide a kind of preparation method of corn dietary fiber.
The second object of the present invention is to provide what a kind of preparation method by described corn dietary fiber was prepared Corn dietary fiber.
The first object of the present invention is achieved in that including specifically including following steps:
A, pre-treatment:The remaining corn byproducts of corn processing are added into distilled water in 110~120 DEG C of boilings after drying, crushing Through concentrating, dry, crush after 30~40min, then raw material is adjusted feed moisture content using slowly sprinkling plus water while stirring To 100~150%, then stop stirring and taking out raw material, seal 5~30min, then raw material is fitted into steam explosion device, 1~ 4min rises to 0.8~1.0Mpa, moment release after 50~80s of pressurize, and it is 2.5~3 to take out raw material and add mass percent concentration NaOH solution, under 160~200W power extracting 25~30min obtains extract solution, then by extract solution with 5500~6000r/min Filtered after 3~4min of centrifugation, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1~6, add removing impurities enzyme The mass ratio of 1~3.5h of enzymolysis, filter residue and removing impurities enzyme is 1:0.025~0.035, hydrolysis temperature is 25~55 DEG C, pH value 5.0 ~8.0, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3 ~5, add 1~4h of enzymatic hydrolysis, the mass ratio of dietary fibre materials and hydrolase is 1:0.02~0.03, hydrolysis temperature For 30~50 DEG C, pH value is 4.0~6.0, and it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2~5, after mixing stand 1.5~2h, then with 4000~4500r/min centrifuges taking precipitate after 8~15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
The second object of the present invention is achieved in that what is be prepared by the preparation method of described corn dietary fiber Corn dietary fiber;This corn dietary fiber has that purity is high, palatability is excellent, fiber diameter is small, moisture holding capacity and swelliong power The advantages of strong.
Beneficial effects of the present invention:The method of the present invention uses in preceding processing and carries out thermophilic digestion processing, vapour to raw material Quick-fried processing, the mode being combined is ultrasonically treated, can effectively destroy raw material mix tissue, its inclusion is fully exposed, and tie Removing impurities processing is closed, further reduces non-dietary fiber component in raw material, the raw material after pre-treatment not only contributes to reinforcing fiber The hydrolysis result of the complex enzyme of plain enzyme or cellulase and hemicellulase, make enzymolysis more fully so as to improve manufactured goods solubility The purity of dietary fiber, and the palatability of manufactured goods can be effectively improved;Purified, further improved pure again after enzymolysis Degree, manufactured goods soluble dietary fiber have the advantages of purity is high, the preparation of the high-quality that is particularly suitable for use in soluble dietary fiber; It is excellent that the method manufactured goods soluble dietary fiber of the present invention also has that fiber diameter is small, moisture holding capacity and swelliong power are strong Point;The method of the present invention is by the use of corn byproducts as raw material, the problem of can reducing the wasting of resources and environmental pollution.
Embodiment
With reference to embodiment, the present invention is further illustrated, but the present invention is not any limitation as in any way, Based on present invention teach that any conversion or replacement made, belong to protection scope of the present invention.
The preparation method of corn dietary fiber of the present invention, specifically includes following steps:
A, pre-treatment:The remaining corn byproducts of corn processing are added into distilled water in 110~120 DEG C of boilings after drying, crushing Through concentrating, dry, crush after 30~40min, then raw material is adjusted feed moisture content using slowly sprinkling plus water while stirring To 100~150%, then stop stirring and taking out raw material, seal 5~30min, then raw material is fitted into steam explosion device, 1~ 4min rises to 0.8~1.0Mpa, moment release after 50~80s of pressurize, and it is 2.5~3 to take out raw material and add mass percent concentration NaOH solution, under 160~200W power extracting 25~30min obtains extract solution, then by extract solution with 5500~6000r/min Filtered after 3~4min of centrifugation, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1~6, add removing impurities enzyme The mass ratio of 1~3.5h of enzymolysis, filter residue and removing impurities enzyme is 1:0.025~0.035, hydrolysis temperature is 25~55 DEG C, pH value 5.0 ~8.0, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3 ~5, add 1~4h of enzymatic hydrolysis, the mass ratio of dietary fibre materials and hydrolase is 1:0.02~0.03, hydrolysis temperature For 30~50 DEG C, pH value is 4.0~6.0, and it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2~5, after mixing stand 1.5~2h, then with 4000~4500r/min centrifuges taking precipitate after 8~15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
The removing impurities enzyme stated is amylase and/or protease.
Hydrolysis temperature is 50~55 DEG C in described step A, and pH value is 6~6.5.
Described hydrolase is cellulase or the complex enzyme of cellulase and hemicellulase.
Described drying is the one or more in expansion drying, vacuum drying, spray drying.
Described corn byproducts are corn bran.
Described removing impurities enzyme is amylase and protease, and the mass ratio of amylase and protease is 7~9:1~3.
Described hydrolase is the quality of the complex enzyme of cellulase and hemicellulase, cellulase and hemicellulase Than for 1~3:7~9.
Sealing is sealing 20min in described step A.
Described crushing is ultramicro grinding.
The corn dietary fiber that the preparation method of described corn dietary fiber is prepared.
Embodiment 1
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then The mass ratio of addition removing impurities enzyme enzymolysis 1h, filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 25 DEG C, pH value 5.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add enzymatic hydrolysis 1h, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, and pH value is 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 2
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, the mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, pH value 8.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add enzymatic hydrolysis 4h, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, and pH value is 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 3
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 40 DEG C, and pH value is 6.5, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add enzymatic hydrolysis 2.5h, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, pH It is worth for 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 4
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then The mass ratio of addition amylase enzymolysis 1h, filter residue and amylase is 1:0.025, hydrolysis temperature is 25 DEG C, pH value 5.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add enzymatic hydrolysis 1h, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, and pH value is 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 5
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter amylase enzymolysis 3.5h, the mass ratio of filter residue and amylase is 1:0.035, hydrolysis temperature is 55 DEG C, pH value 8.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add enzymatic hydrolysis 4h, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, and pH value is 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 6
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, add amylase enzymolysis 2.3h, the mass ratio of filter residue and amylase is 1:0.030, hydrolysis temperature is 40 DEG C, and pH value is 6.5, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add enzymatic hydrolysis 2.5h, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, pH It is worth for 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 7
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then The mass ratio of addition protease hydrolyzed 1h, filter residue and protease is 1:0.025, hydrolysis temperature is 25 DEG C, pH value 5.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add enzymatic hydrolysis 1h, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, and pH value is 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 8
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter protease hydrolyzed 3.5h, the mass ratio of filter residue and protease is 1:0.035, hydrolysis temperature is 55 DEG C, pH value 8.0, filtering After take the filter residue to be dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add enzymatic hydrolysis 4h, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, and pH value is 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 9
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, add protease hydrolyzed 2.3h, the mass ratio of filter residue and protease is 1:0.030, hydrolysis temperature is 40 DEG C, and pH value is 6.5, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add enzymatic hydrolysis 2.5h, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, pH It is worth for 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 10
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then Add removing impurities enzyme enzymolysis 1h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 7:3, The mass ratio of filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 25 DEG C, and pH value 5.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add enzymatic hydrolysis 1h, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, and pH value is 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 11
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 9:1, The mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, and pH value 8.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add enzymatic hydrolysis 4h, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, and pH value is 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 12
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, described removing impurities enzyme includes the quality of amylase and protease, amylase and protease Than for 8:2, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 40 DEG C, and pH value 6.5 takes the filter residue to be after filtering Dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add enzymatic hydrolysis 2.5h, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, pH It is worth for 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 13
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then Add removing impurities enzyme enzymolysis 1h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 7:3, The mass ratio of filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 50 DEG C, and pH value 6.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add enzymatic hydrolysis 1h, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, and pH value is 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 14
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 9:1, The mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, and pH value 6.5, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add enzymatic hydrolysis 4h, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, and pH value is 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 15
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, described removing impurities enzyme includes the quality of amylase and protease, amylase and protease Than for 8:2, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 53 DEG C, and pH value 6.5 takes the filter residue to be after filtering Dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add enzymatic hydrolysis 2.5h, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, pH It is worth for 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 16
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then Add removing impurities enzyme enzymolysis 1h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 7:3, The mass ratio of filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 50 DEG C, and pH value 6.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Add cellulase degradation 1h, the mass ratio of dietary fibre materials and cellulase is 1:0.02, hydrolysis temperature is 30 DEG C, pH It is worth for 4.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 17
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 9:1, The mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, and pH value 6.5, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Add cellulase degradation 4h, the mass ratio of dietary fibre materials and cellulase is 1:0.03, hydrolysis temperature is 50 DEG C, pH It is worth for 6.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 18
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, described removing impurities enzyme includes the quality of amylase and protease, amylase and protease Than for 8:2, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 53 DEG C, and pH value 6.5 takes the filter residue to be after filtering Dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Add cellulase degradation 2.5h, the mass ratio of dietary fibre materials and cellulase is 1:0.025, hydrolysis temperature 40 DEG C, pH value 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 19
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 5min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then Add removing impurities enzyme enzymolysis 1h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 7:3, The mass ratio of filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 50 DEG C, and pH value 6.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Enzymatic hydrolysis 1h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulase Mass ratio be 1:9, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, pH value 4.0, It is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 20
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 30min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 9:1, The mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, and pH value 6.5, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Enzymatic hydrolysis 4h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulase Mass ratio be 3:7, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, pH value 6.0, It is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 21
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 17min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, described removing impurities enzyme includes the quality of amylase and protease, amylase and protease Than for 8:2, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 53 DEG C, and pH value 6.5 takes the filter residue to be after filtering Dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Enzymatic hydrolysis 2.5h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulose The mass ratio of enzyme is 2:8, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, and pH value is 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 22
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 110 DEG C of boiling 30min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 100%, then stops stirring and takes Go out raw material, seal 20min, then raw material is fitted into steam explosion device, rise to 0.8Mpa in 1min, moment release after pressurize 50s, take Go out raw material and add the NaOH solution that mass percent concentration is 2.5,25min is extracted under 160W power and obtains extract solution, then will be carried Take liquid to be filtered after centrifuging 3min with 5500r/min, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1, then Add removing impurities enzyme enzymolysis 1h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 7:3, The mass ratio of filter residue and removing impurities enzyme is 1:0.025, hydrolysis temperature is 50 DEG C, and pH value 6.0, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3, Enzymatic hydrolysis 1h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulase Mass ratio be 1:9, the mass ratio of dietary fibre materials and hydrolase is 1:0.02, hydrolysis temperature is 30 DEG C, pH value 4.0, It is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2,1.5h is stood after mixing, then with 4000r/ Taking precipitate after min centrifugations 8min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 23
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 120 DEG C of boiling 40min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 150%, then stops stirring and takes Go out raw material, seal 20min, then raw material is fitted into steam explosion device, rise to 1.0Mpa in 4min, moment release after pressurize 80s, take Go out raw material and add the NaOH solution that mass percent concentration is 3,30min is extracted under 200W power and obtains extract solution, then will extraction Liquid is filtered after centrifuging 4min with 6000r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue:6, then add Enter removing impurities enzyme enzymolysis 3.5h, described removing impurities enzyme includes amylase and protease, and the mass ratio of amylase and protease is 9:1, The mass ratio of filter residue and removing impurities enzyme is 1:0.035, hydrolysis temperature is 55 DEG C, and pH value 6.5, it is dietary fiber that filter residue is taken after filtering Raw material;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:5, Enzymatic hydrolysis 4h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulase Mass ratio be 3:7, the mass ratio of dietary fibre materials and hydrolase is 1:0.03, hydrolysis temperature is 50 DEG C, pH value 6.0, It is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:5,2h is stood after mixing, then with 4500r/min Taking precipitate after centrifugation 15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 24
The preparation method of corn dietary fiber, comprises the following steps:
A, pre-treatment:Add distilled water after 115 DEG C of boiling 35min through concentrating, drying, powder after drying, crushing corn bran It is broken, then to raw material using slowly sprinkling adds water while stirring, feed moisture content is adjusted to 125%, then stops stirring and takes Go out raw material, seal 20min, then raw material is fitted into steam explosion device, 0.9Mpa is risen in 2.5min, moment release after pressurize 65s, Take out raw material and add the NaOH solution that mass percent concentration is 2.8,27min is extracted under 180W power and obtains extract solution, then will Extract solution is filtered after centrifuging 3.5min with 5750r/min, takes filter residue, and the mass ratio 1 of water, filter residue and water is then added in filter residue: 3.5, removing impurities enzyme enzymolysis 2.3h is added, described removing impurities enzyme includes the quality of amylase and protease, amylase and protease Than for 8:2, the mass ratio of filter residue and removing impurities enzyme is 1:0.030, hydrolysis temperature is 53 DEG C, and pH value 6.5 takes the filter residue to be after filtering Dietary fibre materials;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:4, Enzymatic hydrolysis 2.5h is added, described hydrolase includes cellulase and hemicellulase, cellulase and hemicellulose The mass ratio of enzyme is 2:8, the mass ratio of dietary fibre materials and hydrolase is 1:0.025, hydrolysis temperature is 40 DEG C, and pH value is 5.0, it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:3.5,1.7h is stood after mixing, then with Taking precipitate after 4250r/min centrifugations 12min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
Embodiment 25
The corn dietary fiber being prepared by the preparation method of embodiment 3.
Embodiment 26
The corn dietary fiber being prepared by the preparation method of embodiment 24.

Claims (10)

1. a kind of preparation method of corn dietary fiber, it is characterised in that specifically include following steps:
A, pre-treatment:The remaining corn byproducts of corn processing are added into distilled water in 110~120 DEG C of boilings after drying, crushing Through concentrating, dry, crush after 30~40min, then raw material is adjusted feed moisture content using slowly sprinkling plus water while stirring To 100~150%, then stop stirring and taking out raw material, seal 5~30min, then raw material is fitted into steam explosion device, 1~ 4min rises to 0.8~1.0Mpa, moment release after 50~80s of pressurize, and it is 2.5~3 to take out raw material and add mass percent concentration NaOH solution, under 160~200W power extracting 25~30min obtains extract solution, then by extract solution with 5500~6000r/min Filtered after 3~4min of centrifugation, take filter residue, the mass ratio 1 of water, filter residue and water is then added in filter residue:1~6, add removing impurities enzyme The mass ratio of 1~3.5h of enzymolysis, filter residue and removing impurities enzyme is 1:0.025~0.035, hydrolysis temperature is 25~55 DEG C, pH value 5.0 ~8.0, it is dietary fibre materials that filter residue is taken after filtering;
B, prepared by semi-finished product:The obtained dietary fibre materials of step A are added into water, the mass ratio of dietary fibre materials and water is 1:3 ~5, add 1~4h of enzymatic hydrolysis, the mass ratio of dietary fibre materials and hydrolase is 1:0.02~0.03, hydrolysis temperature For 30~50 DEG C, pH value is 4.0~6.0, and it is semi-finished product that filtrate is taken after filtering;
C, purify:To the semi-finished product heat inactivation in step B, filtrate is taken after filtering, concentrating filter liquor obtains concentrate, then dense Add absolute ethyl alcohol in contracting liquid, the mass ratio of concentrate and absolute ethyl alcohol is 1:2~5, after mixing stand 1.5~2h, then with 4000~4500r/min centrifuges taking precipitate after 8~15min;
D, post-process:By obtained sediment in step C through homogeneous, be drying to obtain manufactured goods soluble dietary fiber.
2. the preparation method of corn dietary fiber according to claim 1, it is characterised in that described removing impurities enzyme is starch Enzyme and/or protease.
3. the preparation method of corn dietary fiber according to claim 1, it is characterised in that the enzymolysis temperature described in step A Spend for 50~55 DEG C, pH value is 6~6.5.
4. the preparation method of corn dietary fiber according to claim 1, it is characterised in that described hydrolase is fiber The complex enzyme of plain enzyme or cellulase and hemicellulase.
5. the preparation method of corn dietary fiber according to claim 1, it is characterised in that described drying is dry for flash distillation One or more in dry, vacuum drying, spray drying.
6. the preparation method of corn dietary fiber according to claim 1, it is characterised in that described corn byproducts are Corn bran.
7. the preparation method of corn dietary fiber according to claim 1 or 2, it is characterised in that described removing impurities enzyme is shallow lake The mass ratio of powder enzyme and protease, amylase and protease is 7~9:1~3.
8. the preparation method of the corn dietary fiber according to claim 1 or 4, it is characterised in that described hydrolase is fibre Tie up the complex enzyme of plain enzyme and hemicellulase, the mass ratio of cellulase and hemicellulase is 1~3:7~9.
9. the preparation method of corn dietary fiber according to claim 1, it is characterised in that the sealing described in step A is Seal 20min.
10. the corn dietary that a kind of preparation method of corn dietary fiber as described in claim 1~9 is any is prepared is fine Dimension.
CN201710664902.9A 2017-08-07 2017-08-07 The preparation method and corn dietary fiber of a kind of corn dietary fiber Pending CN107495392A (en)

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CN110574934A (en) * 2019-10-16 2019-12-17 广西马中粮油有限公司 Method for producing dietary fiber by using rice hull as raw material
CN110652014A (en) * 2019-10-16 2020-01-07 梁乐 Method for preparing dietary fiber from zedoary turmeric leaves

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Application publication date: 20171222