CN107951037A - A kind of preparation method of sweet potato soluble dietary fiber - Google Patents
A kind of preparation method of sweet potato soluble dietary fiber Download PDFInfo
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- 244000017020 Ipomoea batatas Species 0.000 title claims abstract description 86
- 235000002678 Ipomoea batatas Nutrition 0.000 title claims abstract description 86
- 235000013325 dietary fiber Nutrition 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 23
- 102000004190 Enzymes Human genes 0.000 claims abstract description 14
- 108090000790 Enzymes Proteins 0.000 claims abstract description 14
- 244000068988 Glycine max Species 0.000 claims abstract description 14
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 29
- 239000012535 impurity Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 229920002472 Starch Polymers 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 16
- 239000008107 starch Substances 0.000 claims description 16
- 235000019698 starch Nutrition 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 102000004139 alpha-Amylases Human genes 0.000 claims description 13
- 108090000637 alpha-Amylases Proteins 0.000 claims description 13
- 229940024171 alpha-amylase Drugs 0.000 claims description 13
- 229940088598 enzyme Drugs 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 12
- 239000012141 concentrate Substances 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000013049 sediment Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 108010059892 Cellulase Proteins 0.000 claims description 6
- 229940106157 cellulase Drugs 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000002525 ultrasonication Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 244000061456 Solanum tuberosum Species 0.000 abstract description 16
- 235000002595 Solanum tuberosum Nutrition 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 13
- 239000002893 slag Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 230000007062 hydrolysis Effects 0.000 abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000004090 dissolution Methods 0.000 abstract description 5
- 230000009144 enzymatic modification Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012869 ethanol precipitation Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000002604 ultrasonography Methods 0.000 abstract description 2
- 238000005119 centrifugation Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 13
- 238000011160 research Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229930014669 anthocyanidin Natural products 0.000 description 3
- 150000001452 anthocyanidin derivatives Chemical class 0.000 description 3
- 235000008758 anthocyanidins Nutrition 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 2
- 210000000170 cell membrane Anatomy 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000001766 physiological effect Effects 0.000 description 2
- 229920001592 potato starch Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010009944 Colon cancer Diseases 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- 108010076282 Factor IX Proteins 0.000 description 1
- 108010054218 Factor VIII Proteins 0.000 description 1
- 102000001690 Factor VIII Human genes 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000029742 colonic neoplasm Diseases 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, 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
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/20—Reducing nutritive value; Dietetic products with reduced nutritive value
- A23L33/21—Addition of substantially indigestible substances, e.g. dietary fibres
- A23L33/22—Comminuted fibrous parts of plants, e.g. bagasse or pulp
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, 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
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
- A23L19/10—Products from fruits or vegetables; Preparation or treatment thereof of tuberous or like starch containing root crops
- A23L19/105—Sweet potatoes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, 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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/06—Enzymes
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, 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
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
- A23L5/32—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation using phonon wave energy, e.g. sound or ultrasonic waves
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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Abstract
A kind of preparation method of sweet potato soluble dietary fiber, belongs to sweet potato processing technique field.It is low that the present invention solves potato slag enzymolysis efficiency in the prior art, the problem of soluble dietary fibre content of extraction is low, a kind of method that using soybean dietary fiber, the double enzyme synchronous hydrolysis technologies of ultrasound as core, filtered, concentration, ethanol precipitation, centrifugation, drying, disintegrating process flow prepare sweet potato soluble dietary fiber is provided.Soybean dietary fiber technology, can make sweet potato material produce small-size effect, and grain fineness reaches micron order even nanoscale, material specific surface area and significantly increases, and improves enzyme-to-substrate contact area, and then improve enzymolysis efficiency；Meanwhile enzyme modification technology significantly improves enzymolysis efficiency, accelerate soluble dietary fiber dissolution rate, improve soluble dietary fibre content, technology of the invention disclosure satisfy that the demand of industrialized production.
Description
Technical field
The invention belongs to sweet potato to produce and process field, and specifically, the present invention relates to a kind of sweet potato soluble dietary fiber
Preparation method.
Background technology
China is the producing country of global sweet potato maximum, per about 4,100,000 hectares of annual planting area, 1.0 hundred million tons of gross annual output amount.According to
National Sweet Potato Industry technical system statistics, the major way of China sweet potato processing are still " three powder " production, thus produce
Substantial amounts of potato slag, these potato slags about functional components containing 20%-30% --- dietary fiber.Dietary fiber has prevention
Constipation and colon cancer, prevention of cardiovascular disease, auxiliary treatment obesity, elimination external source harmful substance and other effects, moreover, research hair
Existing, contained soluble dietary fiber physiological activity is significantly better than insoluble diedairy fiber in potato slag.At present, China's Starch Production
During produce potato slag generally sold at a bargain as feed or abandoned wantonly, cause huge waste and environmental pollution, this is in
It is especially prominent in small-scale processing enterprise and self-employed farmer's processing.Therefore, how industrialization is quick, efficiently raw using sweet potato dregs
Production dietary fiber particularly soluble dietary fiber is technical barrier urgently to be resolved hurrily at present.
At present, the extracting method of sweet potato soluble dietary fiber mainly has fermentation method, enzyme process, high-pressure process etc., these extractions
Method is limited there are extraction time is long, extraction efficiency is low, production cost is high, is not suitable for the shortcomings of industrialized production and deficiency
The development of dietary fiber industry.In terms of sweet potato soluble dietary fiber preparation, Liu Guangmang etc. proposes a kind of raising sweet potato waste
The method of soluble dietary fiber in fiber, the ratio of soluble dietary fiber and insoluble diedairy fiber is improved using fermentation method
Example, but fermentation period is up to 5 days；Ding Yuqin discloses a kind of method that soluble dietary fiber is prepared using sweet potato waste, utilizes
Screening strain enzymolysis sweet potato dregs, again through the technology such as high pressure modified dietary fiber, most after through decoloration be soluble dietary fiber,
But there are enzymolysis efficiency is not high, high-tension apparatus is expensive, is not suitable for the shortcomings of industrialized production.
The content of the invention
The present invention is low for the problem that potato slag enzymolysis efficiency in the prior art, and the soluble dietary fibre content of extraction is low,
There is provided one kind using soybean dietary fiber, ultrasonic wave-bis- enzymes synchronous hydrolysis technology as core, filtered, concentration, ethanol precipitation, from
The method that the technological processes such as the heart, drying, crushing prepare sweet potato soluble dietary fiber.Specifically include following step：
(1) sweet potato dregs are used into soybean dietary fiber, obtains sweet potato solid impurity particle.
(2) ratio according to sweet potato solid impurity particle and water weight ratio for (1: 50)~(1: 80), in ultrasonic wave extraction equipment
Pure water, sweet potato solid impurity particle are added, then starts stirring system, the two is thoroughly mixed to form mixture.
(3) mixture obtained in step (2) is added using being steam heated to 85-95 DEG C in ultrasonic wave extraction equipment
Enter heat-resistant alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 10-15 μ L/g, then starts ultrasonication
15-20min。
(4) by the mixture after step (3) processing, 60-65 DEG C is cooled to, compound fibre is added in ultrasonic wave extraction equipment
The plain enzyme of dimension, in terms of crude fibre quality, complex cellulase additive amount is 3-5 μ L/g, then starts ultrasonication 10-15min.
(5) by the mixture after step (4) processing, it is cooled to room temperature, is filtered using bag filter, obtain filtrate.
(6) for filtrate using being concentrated in vacuo, cocnentration factor is (8: 1)~(10: 1), obtains concentrate.
(7) ethanol is added into concentrate, is stored at room temperature after 2-4h and separation of solid and liquid, sediment is carried out using tube centrifuge
Through drying, pulverize and sieve after obtain sweet potato soluble dietary fiber.
Step (1) described sweet potato dregs are：Accessory substance after sweet potato extraction starch, substantially contains and owns in addition to starch
Sweet potato component, its main component are dietary fiber.Sweet potato dregs of the present invention can use sweet potato as raw material, through over cleaning, break
Sweet potato dregs are obtained after broken, extraction starch, the existing accessory substance for preparing sweet potato starch can also be used to obtain.
Soybean dietary fiber described in step (1) refers to sweet potato or sweet potato dregs input micronizer carrying out micronization processes
Grinding mode.
The fineness of step (1) the sweet potato solid impurity particle is less than 3 μm.
Step (4), (5) described cooling are：The cooling system for starting ultrasonic wave extraction equipment carries out cooling treatment.
Step (5) the bag filter flow control is in 200-400m3/h。
Step (7) the ethanol temperature is 60 DEG C, volume fraction is 90% (v/v).
Step (7) is described to be carried out in separation of solid and liquid process using tube centrifuge, and the revolution of centrifuge is 20000r/min.
Step (7) described drying is：Put the precipitate in 40-50 DEG C of temperature 18 it is small when.
Step (7) the sieving detailed catalogue is 60 mesh.
Beneficial effect
1. the ultrasonic wave that the present invention uses-bis- enzymes synchronous hydrolysis technology, on the one hand by heat-resisting alpha amylase to sweet potato raw material
Handled, effectively remove starch component in sweet potato；Caused by compound cellulose enzyme modification between the cellulosic molecule of crystal region
Hydrogen bond destroys, and Partial digestion occurs for cellulosic molecule so that soluble component is able to dissolution；On the other hand, ultrasonic wave is utilized
The characteristics such as cavitation, mechanical oscillation and fuel factor, can crush and be extracted raw material and cell membrane, accelerate the dissolution of active ingredient
And diffusion, improve enzymolysis efficiency.
2. common enzymatic isolation method is used to prepare enzymolysis time needed for dietary fiber as 2h (the Enzymatic Extraction potato slags such as Sun Jian, bright red
Dietary fiber and article characteristic research [J] Changjiang University's journals (natural science edition), 2008,5 (1):88-92.), the present invention adopts
With ultrasonic wave-bis- enzymes synchronous hydrolysis technology, required enzymolysis time is 25-35min, greatly shortens enzymolysis time, is accelerated solvable
Property dietary fiber dissolution rate, significantly improves enzymolysis efficiency.Soluble meals are more importantly significantly improved by enzyme modification
Eat fiber content, up to 19.16%~27.37%.
3. the present invention utilizes soybean dietary fiber technology, sweet potato material is set to produce small-size effect, grain fineness reaches micro-
Meter level even nanoscale, material specific surface area significantly increase, favourable to improve enzyme-to-substrate contact area, improve enzymolysis efficiency, into
And the content of soluble dietary fiber is improved, and not using (grandson in the research of soybean dietary fiber extraction soluble dietary fiber
It is strong, auspicious research [J] the nuclear agricultural science reports for waiting ultrasound wave auxiliary enzymes method extraction sweet potato dregs diet fibre of button good fortune, 2014,28 (7):
1261-1266) yield of soluble dietary fiber is only 13.49%.
4. of the invention compared with existing high pressure modification technology, high pressure extraction equipment is expensive, only rests on pilot scale rank at present
Section, and ultrasonic wave extraction relative maturity, disclosure satisfy that the demand of industrialized production.
Embodiment
The preparation method of sweet potato soluble dietary fiber described in embodiment one, present embodiment is：
(1) sweet potato dregs are used into soybean dietary fiber, obtains sweet potato solid impurity particle.
(2) ratio according to sweet potato solid impurity particle and water weight ratio for (1: 50)~(1: 80), in ultrasonic wave extraction equipment
Pure water, sweet potato solid impurity particle are added, then starts stirring system, the two is thoroughly mixed to form mixture.
(3) mixture obtained in step (2) is added using being steam heated to 85-95 DEG C in ultrasonic wave extraction equipment
Enter heat-resistant alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 10-15 μ L/g, then starts ultrasonication
15-20min。
(4) by the mixture after step (3) processing, 60-65 DEG C is cooled to, compound fibre is added in ultrasonic wave extraction equipment
The plain enzyme of dimension, in terms of crude fibre quality, complex cellulase additive amount is 3-5 μ L/g, then starts ultrasonication 10-15min.
(5) by the mixture after step (4) processing, it is cooled to room temperature, is filtered using bag filter, obtain filtrate.
(6) for filtrate using being concentrated in vacuo, cocnentration factor is (8: 1)~(10: 1), obtains concentrate.
(7) ethanol is added into concentrate, is stored at room temperature after 2-4h and separation of solid and liquid, sediment is carried out using tube centrifuge
Through drying, pulverize and sieve after obtain sweet potato soluble dietary fiber.
In present embodiment, the sweet potato dregs described in step (1) can use the existing accessory substance for preparing sweet potato starch, also
It can be prepared using sweet potato, specific method is：Obtained using sweet potato after pretreatment.The pretreatment is by sweet potato
Cleaning, broken, extraction starch obtain sweet potato dregs.
In present embodiment, the fineness of the sweet potato solid impurity particle described in step (1) is less than 3 μm.
In present embodiment, step (5) the bag filter flow control is in 200-400m3/h。
Method described in present embodiment using soybean dietary fiber, ultrasonic wave-bis- enzymes synchronous hydrolysis technology as core, wherein
Soybean dietary fiber technology can crush the raw material and cell membrane being extracted, so that in ultrasonic wave-bis- enzymes synchronous hydrolysis work
Accelerate the dissolution and diffusion of active ingredient in skill, improve enzymolysis efficiency.
Embodiment two, present embodiment specifically describe present embodiment using starch type kind Xu-shu No.22 as raw material
The preparation method of the sweet potato soluble dietary fiber.
(1) using starch type kind Xu-shu No.22 as raw material, sweet potato dregs are obtained after cleaned, broken, extraction starch processing, by institute
State sweet potato dregs and use soybean dietary fiber, obtain sweet potato solid impurity particle, the average grain diameter of the sweet potato solid impurity particle is 2.6 μm.
(2) according to material water quality ratio, sweet potato solid impurity particle：Water=1:The ratio of 80 (being calculated with butt), in ultrasonic wave extraction
Pure water, sweet potato solid impurity particle are added in equipment, then starts stirring system, the two is thoroughly mixed to form mixture, during stirring
Between about 50min.
(3) mixture obtained in step (2) is added resistance to using being steam heated to 95 DEG C in ultrasonic wave extraction equipment
Hot alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 10 μ L/g, then starts ultrasonic wave in power 200W bars
Isothermal holding 15min under part.
(4) by the mixture after processing in step (3), 65 DEG C is cooled to, compound fibre is added in ultrasonic wave extraction equipment
The plain enzyme of dimension, in terms of crude fibre quality, complex cellulase additive amount is 3 μ L/g, then starts ultrasonic wave in power 600W conditions
Lower processing 10min.
(5) by the mixture after step (4) processing, it is cooled to room temperature, is filtered using bag filter, flow control exists
200m3/ h, obtains filtrate.
(6) for filtrate using being concentrated in vacuo, cocnentration factor 8: 1, obtains concentrate.
(7) 60 DEG C, 90% (v/v) ethanol are added into concentrate, is stored at room temperature 4h, solid-liquid is carried out using tube centrifuge
Separation, rotating speed 20000r/min, sediment obtain soluble dietary fiber after drying, crushing, sieving.
It is above-mentioned using starch type kind Xu-shu No.22 as raw material prepare sweet potato soluble dietary fiber method in, step (3) and
(4) time of two steps enzymolysis amounts to 25min, and the soluble dietary fiber of the acquisition content in total dietary fiber is reachable
19.16%.
Embodiment three, present embodiment help black No. 1 as raw material with anthocyanidin type kind, specifically describe this embodiment party
The preparation method of sweet potato soluble dietary fiber described in formula.
(1) black No. 1 is helped as raw material with anthocyanidin type kind, sweet potato dregs are obtained after cleaned, broken, extraction starch processing,
The sweet potato dregs are used into soybean dietary fiber, obtain purple sweetpotato solid impurity particle, the average grain diameter of the sweet potato solid impurity particle is 2.9 μ
m。
(2) according to material water quality ratio, purple sweetpotato solid impurity particle：Water=1: the ratio of 50 (being calculated with butt), carries in ultrasonic wave
Pure water, purple sweetpotato solid impurity particle are added in taking equipment, then starts stirring system, the two is thoroughly mixed to form mixture, stir
It is about 50min to mix the time.
(3) mixture obtained in step (2) is added resistance to using being steam heated to 85 DEG C in ultrasonic wave extraction equipment
Hot alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 15 μ L/g, then starts ultrasonic wave in power 200W bars
Isothermal holding 20min under part.
(4) by the mixture after processing in step (3), 60 DEG C is cooled to, compound fibre is added in ultrasonic wave extraction equipment
The plain enzyme of dimension, in terms of crude fibre quality, complex cellulase additive amount is 5 μ L/g, then starts ultrasonic wave in power 600W conditions
Lower processing 15min.
(5) by the mixture after processing in step (4), it is cooled to room temperature, is filtered using bag filter, flow control exists
400m3/ h, obtains filtrate.
(6) for filtrate using being concentrated in vacuo, cocnentration factor 10: 1, obtains concentrate.
(7) 60 DEG C, 90% (v/v) ethanol are added into concentrate, is stored at room temperature 2h；Solid-liquid is carried out using tube centrifuge
Separation, rotating speed 20000r/min, sediment obtain soluble dietary fiber after drying, crushing, sieving.
In above-mentioned black No. 1 method for raw material preparation sweet potato soluble dietary fiber with anthocyanidin type kind Ji, step (3)
(4) time of two steps enzymolysis amounts to 35min, and the soluble dietary fiber of the acquisition content in total dietary fiber is reachable
27.37%.
Embodiment four, present embodiment are raw material with starch type kind business potato 19, specifically describe present embodiment
The preparation method of the sweet potato soluble dietary fiber.
(1) it is raw material with starch type kind business potato 19, business's potato slag is obtained after cleaned, broken, extraction starch processing, by institute
State business's potato slag and use soybean dietary fiber, obtain business's potato solid impurity particle, the average grain diameter of business's potato solid impurity particle is 2.8 μm.
(2) according to material water quality ratio, business's potato solid impurity particle：Water=1: 60 (being calculated with butt), in ultrasonic wave extraction equipment
Pure water, business's potato solid impurity particle are added, then starts stirring system, the two is thoroughly mixed to form mixture, mixing time is about
50min。
(3) mixture obtained in step (2) is added resistance to using being steam heated to 90 DEG C in ultrasonic wave extraction equipment
Hot alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 12 μ L/g, then starts ultrasonic wave in power 200W bars
Isothermal holding 18min under part.
(4) by the mixture after processing in step (3), 62 DEG C is cooled to, compound fibre is added in ultrasonic wave extraction equipment
The plain enzyme of dimension, in terms of crude fibre quality, complex cellulase additive amount is 4 μ L/g, then starts ultrasonic wave in power 600W conditions
Lower processing 13min.
(5) by the mixture after processing in step (4), it is cooled to room temperature, is filtered using bag filter, flow control exists
300m3/ h, obtains filtrate.
(6) for filtrate using being concentrated in vacuo, cocnentration factor 9: 1, obtains concentrate.
(7) 60 DEG C, 90% (v/v) ethanol are added into concentrate, is stored at room temperature 3h；Solid-liquid is carried out using tube centrifuge
Separation, rotating speed 20000r/min, sediment obtain soluble dietary fiber after drying, crushing, sieving.
It is above-mentioned with starch type kind business potato 19 for raw material prepare sweet potato soluble dietary fiber method in, step (3) and
(4) time of two steps enzymolysis amounts to 31min, and the soluble dietary fiber of the acquisition content in total dietary fiber is reachable
21.02%.
Embodiment five, present embodiment are that the further of embodiment one to four is limited, this embodiment party
In formula, the drying to sediment refer to put the precipitate in 40-50 DEG C of temperature 18 it is small when, be conducive to using such processing
Keep the physiological activity of dietary fiber.
Embodiment six, present embodiment are that the further of embodiment one to five is limited, this embodiment party
In formula, step (4), (5) described cooling are：The cooling system for starting ultrasonic wave extraction equipment carries out cooling treatment.
Embodiment seven, present embodiment are that the further of embodiment one to six is limited, this embodiment party
In formula, sediment grinding and sieving detailed catalogue is 60 mesh.
Claims (10)
1. a kind of preparation method of sweet potato soluble dietary fiber, it is characterised in that this method comprises the following steps：
(1) sweet potato dregs are used into soybean dietary fiber, obtains sweet potato solid impurity particle；
(2) ratio according to sweet potato solid impurity particle and water weight ratio for (1: 50)~(1: 80), adds in ultrasonic wave extraction equipment
Pure water, sweet potato solid impurity particle, then start stirring system, the two is thoroughly mixed to form mixture；
(3) mixture obtained in step (2) is added resistance to using being steam heated to 85-95 DEG C in ultrasonic wave extraction equipment
Hot alpha-amylase, with starchiness gauge, heat-resistant alpha-amylase additive amount is 10-15 μ L/g, then starts ultrasonication 15-
20min；
(4) by the mixture after step (3) processing, 60-65 DEG C is cooled to, compound cellulose is added in ultrasonic wave extraction equipment
Enzyme, in terms of crude fibre quality, complex cellulase additive amount is 3-5 μ L/g, then starts ultrasonication 10-15min；
(5) by the mixture after step (4) processing, it is cooled to room temperature, is filtered using bag filter, obtain filtrate；
(6) for filtrate using being concentrated in vacuo, cocnentration factor is (8: 1)~(10: 1), obtains concentrate；
(7) ethanol is added into concentrate, is stored at room temperature after 2-4h and separation of solid and liquid is carried out using tube centrifuge, sediment is through dry
It is dry, pulverize and sieve after obtain sweet potato soluble dietary fiber.
A kind of 2. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (1) institute
Sweet potato dregs are stated to be obtained after pretreatment by sweet potato.
A kind of 3. preparation method of sweet potato soluble dietary fiber according to claim 2, it is characterised in that the step of pretreatment
Suddenly include：Cleaning, broken, extraction starch.
A kind of 4. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (1) institute
The fineness for stating sweet potato solid impurity particle is less than 3 μm.
A kind of 5. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (4),
(5) described cool down is：The cooling system for starting ultrasonic wave extraction equipment carries out cooling treatment.
A kind of 6. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (5) institute
Bag filter flow control is stated in 200-400m3/h。
A kind of 7. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (7) institute
State ethanol temperature be 60 DEG C, volume fraction be 90% (v/v).
A kind of 8. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (7) institute
State and carried out using tube centrifuge in separation of solid and liquid process, the revolution of centrifuge is 20000r/min.
A kind of 9. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (7) institute
Stating drying is：Put the precipitate in 40-50 DEG C of temperature 18 it is small when.
A kind of 10. preparation method of sweet potato soluble dietary fiber according to claim 1, it is characterised in that step (7) institute
It is 60 mesh to state sieving detailed catalogue.
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| CN107927799A (en) * | 2017-12-04 | 2018-04-20 | 重庆骄王天然产物股份有限公司 | A kind of high-quality dietary fiber and preparation method thereof |
| CN110810840A (en) * | 2019-11-18 | 2020-02-21 | 莒南和信食品有限公司 | Extraction method of sweet potato vine and application of extract thereof in solid beverage |
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