CN112493496A - Method for preparing dietary fiber by using bean dregs - Google Patents
Method for preparing dietary fiber by using bean dregs Download PDFInfo
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- CN112493496A CN112493496A CN202011376750.0A CN202011376750A CN112493496A CN 112493496 A CN112493496 A CN 112493496A CN 202011376750 A CN202011376750 A CN 202011376750A CN 112493496 A CN112493496 A CN 112493496A
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- dietary fiber
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- 235000010627 Phaseolus vulgaris Nutrition 0.000 title claims abstract description 38
- 244000046052 Phaseolus vulgaris Species 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 23
- 235000013325 dietary fiber Nutrition 0.000 title claims abstract description 22
- 244000068988 Glycine max Species 0.000 claims abstract description 9
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000004108 freeze drying Methods 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 15
- 238000000265 homogenisation Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 238000005374 membrane filtration Methods 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 108010059892 Cellulase Proteins 0.000 claims description 8
- 229940106157 cellulase Drugs 0.000 claims description 8
- 238000001471 micro-filtration Methods 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 108090000790 Enzymes Proteins 0.000 claims description 3
- 102000004190 Enzymes Human genes 0.000 claims description 3
- 229940088598 enzyme Drugs 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- 235000013527 bean curd Nutrition 0.000 abstract description 4
- 108010073771 Soybean Proteins Proteins 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 235000019710 soybean protein Nutrition 0.000 abstract description 3
- 235000019621 digestibility Nutrition 0.000 abstract description 2
- 238000009700 powder processing Methods 0.000 abstract description 2
- 229920002749 Bacterial cellulose Polymers 0.000 description 5
- 239000005016 bacterial cellulose Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000008104 plant cellulose Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 235000013322 soy milk Nutrition 0.000 description 1
- 239000000758 substrate Substances 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
-
- 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
-
- 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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- 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)
- Mycology (AREA)
- Microbiology (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a method for preparing dietary fiber by using bean dregs, which belongs to the technical field of dietary fiber powder processing and aims to solve the technical problem of improving the content of the dietary fiber extracted from the bean dregs. The soluble dietary fiber content of the soybean dietary fiber powder produced by the method can reach 92.68-96.47%, the soybean protein isolate and the bean curd production waste residues are used as raw materials, the utilization rate and the value of the bean dregs are improved, the equipment investment is small, the continuous automatic production can be realized, the produced bean dregs powder has good dissolvability and stability, is rich in dietary fiber, has fine and smooth taste and high digestibility.
Description
Technical Field
The invention belongs to the technical field of dietary fiber powder processing, and particularly relates to a method for preparing dietary fiber by using bean dregs.
Background
The bean dregs are waste dregs generated in the production process of soybean protein isolate factories, bean curd and soybean milk factories, and at present, because the bean dregs are not easy to store, have poor smell, have undefined application direction and other limitations, a large amount of bean dregs can only be used for animal feeds, thereby causing the waste of resources. In recent years, the development of the bean product industry in China is rapid, bean product professional committees make preliminary statistics, the amount of the soybean used for producing the isolated protein, the bean curd and the soymilk is about 400 ten thousand tons every year, and 2-3 tons of bean dregs are discharged when 1 ton of the soybean is processed. Therefore, a large amount of bean dregs are directly used for the feed without being fully utilized every year, and the resource of the bean dregs is greatly wasted.
The protein content of the bean dregs is about 16-21%. The bean dregs contain rich nutrient components and nutrient substances necessary for the growth of microorganisms, so that the production of the bacterial cellulose by using the bean dregs as the fermentation substrate is the best method for reducing the environmental pollution and fully utilizing the bacterial cellulose. Bacterial cellulose has the same chemical properties as plant cellulose, but bacterial cellulose has many unique properties: higher water retention and rehydration rates, high modulus of elasticity and good biocompatibility and biodegradability, make the product expensive due to its low yield. The existing bacterial cellulose production method has the defects of strong limitation of used raw materials and non-ideal product yield.
Disclosure of Invention
The invention aims to effectively utilize bean dregs and not waste resources, and the invention provides a method for preparing dietary fiber by utilizing the bean dregs, aiming at solving the problem of how to improve the content of the dietary fiber extracted from the bean dregs, which comprises the following specific steps:
1) coarse grinding the bean dregs by adopting a two-pass electric stone mill, removing residues of a product after the coarse grinding by adopting a separate pulping machine, refining the product after removing the residues by using a colloid mill, and filtering the product in a duplex filter;
2) enzymolysis: adding cellulase into the filtered product obtained in the step 1) to perform enzymolysis reaction;
3) treating by a jet cavitation machine: treating the product obtained in the step 2) after enzymolysis by using a jet cavitation machine;
4) membrane filtration: filtering the product treated by the jet cavitation machine obtained in the step 3) by using a microfiltration membrane;
5) high-pressure homogenization: carrying out high-pressure homogenization treatment on the product obtained by membrane filtration in the step 4);
6) and (3) vacuum low-temperature concentration: carrying out vacuum low-temperature concentration treatment on the product obtained in the step 5) after high-pressure homogenization;
7) and (3) freeze drying: and (3) freeze-drying the product obtained in the step 6) after vacuum low-temperature concentration treatment to obtain the soybean dietary fiber powder.
Further limiting, the rotational speed of the stone mill in the step 1) is 800r/min-900r/min, and the time is 6s-8 s.
Further defined, the rotating speed of the separating refiner in the step 1) is 9000r/min-10000 r/min.
Further limiting, the filter screen of the duplex filter in the step 1) is 300-400 meshes.
Further limiting, the enzyme adding amount in the step 2) is 3% -4% of the dry weight of the bean dregs; the enzymolysis temperature is 56-60 ℃, the PH is 4.5-6.5, and the enzymolysis time is 2-3 h.
Further limiting, the pressure of the jet cavitation treatment in the step 3) is 0.30MPa-0.32MPa, and the treatment time is 3h-4 h.
Further limiting, the aperture of the microfiltration membrane in the step 4) is 0.01-0.02 μm, and the filtration pressure is 0.2-0.3 MPa.
Further limiting, the pressure of the high-pressure homogenizing treatment in the step 5) is 60-80 MPa, and the homogenizing time is 2-3 min.
Further limiting, the vacuum degree of the vacuum low-temperature concentration treatment in the step 6) is 0.08Mpa-0.10Mpa, the temperature is 65 ℃ -75 ℃, and the concentration is carried out to 40 Baume degree-42 Baume degree.
Further limiting, the temperature of the freeze drying in the step 7) is-100 ℃ to-120 ℃, the vacuum degree is 8pa to 10pa, and the freeze drying time is 8h to 12 h.
Has the advantages that: (1) the method comprises the steps of firstly carrying out coarse grinding and fine grinding on the bean dregs to prepare mixed pulp, and carrying out enzymolysis by using cellulase to change insoluble cellulose into soluble cellulose, wherein the solubility is greatly improved compared with that before the treatment;
(2) the invention uses cavitation jet flow to process, so that the particles are further sheared and cavitated, the particles are further reduced, and the dissolubility is obviously improved.
(3) The invention utilizes the soybean protein isolate and the bean curd production waste residue as raw materials, improves the utilization rate and the value of the bean dregs, solves the problem of poor solubility of the bean dregs, has small equipment investment, can realize continuous automatic production, and produces the bean dreg powder which has good solubility and stability, is rich in dietary fiber, has delicate taste and high digestibility.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The experimental materials were all purchased commercially.
Example 1.
A method for preparing dietary fiber by using bean dregs comprises the following specific steps:
1) carrying out coarse grinding on the bean dregs by adopting a two-pass electric stone mill, wherein the rotation speed of the stone mill is 900r/min, and the grinding time is 8 s; processing the coarse ground product by adopting a separate pulping machine at the rotating speed of 10000r/min, after deslagging, refining the deslagging product by using a colloid mill, fully grinding the deslagging product, and then feeding the deslagging product into a duplex filter, wherein the filtering screen is 400 meshes;
2) enzymolysis: adding cellulase into the filtered product obtained in the step 1), wherein the addition amount of the cellulase is 3-4% of the dry weight of the bean dregs, the enzymolysis temperature is 60 ℃, the pH value is 6.5, and the enzymolysis time is 3 hours;
3) treating by a jet cavitation machine: treating the product obtained in the step 2) after enzymolysis by using a jet cavitation machine, wherein the pressure is 0.32MPa, and the treatment time is 4 h;
4) membrane filtration: filtering the product treated by the jet cavitation machine obtained in the step 3) by using a microfiltration membrane, wherein the membrane aperture is 0.02 mu m, and the pressure is 0.3 Mpa;
5) high-pressure homogenization: homogenizing the product obtained by membrane filtration in step 4) at 80MPa for 3 min;
6) and (3) vacuum low-temperature concentration: concentrating the product obtained in step 5) at 75 deg.C under 0.10Mpa to 42 Baume degree;
7) and (3) freeze drying: freeze-drying the product obtained in the step 6) after vacuum low-temperature concentration to obtain the soybean dietary fiber powder, wherein the freeze-drying temperature is-120 ℃, the vacuum degree is 10pa, and the freeze-drying time is 12 h. Under this condition the soluble fibre content can reach 96.47%.
Example 2.
A method for preparing dietary fiber by using bean dregs comprises the following specific steps:
1) carrying out coarse grinding on the bean dregs by adopting a two-pass electric stone mill, wherein the rotational speed of the stone mill is 850r/mi, and the grinding time is 7 s; treating the coarse ground product at a rotating speed of 9800r/min of a separate pulping machine, removing residues, refining the residue-removed product by using a colloid mill, fully grinding the product, and feeding the product into a duplex filter, wherein a filter screen for filtering is 360 meshes;
2) enzymolysis: adding cellulase into the filtered product obtained in the step 1), wherein the addition amount of the cellulase is 3-4% of the dry weight of the bean dregs, the enzymolysis temperature is 59 ℃, the pH value is 5.5, and the enzymolysis time is 2.6 hours;
3) treating by a jet cavitation machine: treating the product obtained in the step 2) after enzymolysis by using a jet cavitation machine, wherein the pressure is 0.31MPa, and the treatment time is 3.8 h;
4) membrane filtration: filtering the product treated by the jet cavitation machine obtained in the step 3) by using a microfiltration membrane, wherein the membrane aperture is 0.016 microns, and the pressure is 0.28 Mpa;
5) high-pressure homogenization: homogenizing the product obtained by membrane filtration in step 4) under high pressure of 73MPa for 2.8 min;
6) and (3) vacuum low-temperature concentration: concentrating the product obtained in step 5) at low temperature under vacuum at 0.09Mpa and 69 deg.C to 41 Baume degree;
7) and (3) freeze drying: freeze-drying the product obtained in the step 6) after vacuum low-temperature concentration to obtain the soybean dietary fiber powder, wherein the freeze-drying temperature is-112 ℃, the vacuum degree is 9pa, and the freeze-drying time is 11 h. Under the condition, the content of soluble fiber can reach 92.68%.
Example 3.
A method for preparing dietary fiber by using bean dregs comprises the following specific steps:
1) carrying out coarse grinding on the bean dregs by adopting a two-pass electric stone mill, wherein the rotation speed of the stone mill is 800r/min, and the grinding time is 8 s; treating the coarse ground product by adopting a separated pulping machine at a rotating speed of 9000r/min, refining the product after deslagging by using a colloid mill after deslagging, fully grinding the product, and then feeding the product into a duplex filter, wherein a filter screen for filtering is 300 meshes;
2) enzymolysis: adding cellulase into the filtered product obtained in the step 1), wherein the enzyme adding amount is 3% of the dry weight of the bean dregs, the enzymolysis temperature is 56 ℃, the pH value is 4.5, and the enzymolysis time is 2 hours;
3) treating by a jet cavitation machine: treating the product obtained in the step 2) after enzymolysis by using a jet cavitation machine, wherein the pressure is 0.30MPa, and the treatment time is 3 h;
4) membrane filtration: filtering the product treated by the jet cavitation machine obtained in the step 3) by using a microfiltration membrane, wherein the membrane aperture is 0.01 mu mm, and the pressure is 0.2 Mpa;
5) high-pressure homogenization: carrying out high-pressure homogenization treatment on the product obtained by membrane filtration in the step 4), wherein the homogenization pressure is 60Mpa, and the homogenization time is 2 min;
6) and (3) vacuum low-temperature concentration: concentrating the product obtained in step 5) at low temperature under vacuum at 0.08Mpa and 65 deg.C to 40 Baume degree;
7) and (3) freeze drying: freeze-drying the product obtained in the step 6) after vacuum low-temperature concentration to obtain the soybean dietary fiber powder, wherein the freeze-drying temperature is-100 ℃, the vacuum degree is 8pa, and the freeze-drying time is 8 h. Under the condition, the content of soluble fiber can reach 95.87%.
Claims (10)
1. A method for preparing dietary fiber by using bean dregs is characterized by comprising the following specific steps:
1) coarse grinding the bean dregs by adopting a two-pass electric stone mill, removing residues of a product after the coarse grinding by adopting a separate pulping machine, refining the product after removing the residues by using a colloid mill, and filtering the product in a duplex filter;
2) enzymolysis: adding cellulase into the filtered product obtained in the step 1) to perform enzymolysis reaction;
3) treating by a jet cavitation machine: treating the product obtained in the step 2) after enzymolysis by using a jet cavitation machine;
4) membrane filtration: filtering the product treated by the jet cavitation machine obtained in the step 3) by using a microfiltration membrane;
5) high-pressure homogenization: carrying out high-pressure homogenization treatment on the product obtained by membrane filtration in the step 4);
6) and (3) vacuum low-temperature concentration: carrying out vacuum low-temperature concentration treatment on the product obtained in the step 5) after high-pressure homogenization;
7) and (3) freeze drying: and (3) freeze-drying the product obtained in the step 6) after vacuum low-temperature concentration treatment to obtain the soybean dietary fiber powder.
2. The method as claimed in claim 1, wherein the rotational speed of the stone mill in step 1) is 800r/min to 900r/min for 6s to 8 s.
3. The method according to claim 1, characterized in that the rotation speed of the split refiner in step 1) is 9000r/min-10000 r/min.
4. The method of claim 1, wherein the sieve of the duplex strainer in step 1) is 300-400 mesh.
5. The method according to claim 1, wherein the enzyme is added in the step 2) in an amount of 3% -4% of the dry weight of the okara; the enzymolysis temperature is 56-60 ℃, the PH is 4.5-6.5, and the enzymolysis time is 2-3 h.
6. The method as claimed in claim 1, wherein the pressure of the jet cavitation treatment in the step 3) is 0.30MPa to 0.32MPa, and the treatment time is 3h to 4 h.
7. The method as claimed in claim 1, wherein the pore size of the microfiltration membrane in step 4) is 0.01 to 0.02 μm, and the pressure for filtration is 0.2 to 0.3 Mpa.
8. The method as claimed in claim 1, wherein the pressure of the high pressure homogenization treatment in step 5) is 60Mpa-80Mpa, and the homogenization time is 2min-3 min.
9. The method as claimed in claim 1, wherein the vacuum low temperature concentration process in step 6) has a vacuum degree of 0.08Mpa to 0.10Mpa, a temperature of 65 ℃ to 75 ℃, and concentration to 40 Baume degree to 42 Baume degree.
10. The method as claimed in claim 1, wherein the temperature of the freeze-drying in the step 7) is-100 ℃ to-120 ℃, the vacuum degree is 8pa to 10pa, and the freeze-drying time is 8h to 12 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011376750.0A CN112493496A (en) | 2020-11-30 | 2020-11-30 | Method for preparing dietary fiber by using bean dregs |
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| CN202011376750.0A CN112493496A (en) | 2020-11-30 | 2020-11-30 | Method for preparing dietary fiber by using bean dregs |
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| CN112493496A true CN112493496A (en) | 2021-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113854489A (en) * | 2021-09-17 | 2021-12-31 | 哈尔滨商业大学 | Low-fat high-dietary-fiber bean curd and preparation method thereof |
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| CN102018183A (en) * | 2010-12-10 | 2011-04-20 | 广西大学 | Method for preparing dietary fiber via mechanical activation and enzymolysis by taking bean dregs as raw material |
| CN107647286A (en) * | 2017-08-07 | 2018-02-02 | 云南肠和健康科技股份有限公司 | The preparation method and bean dregs dietary fiber of a kind of bean dregs dietary fiber |
| CN110101087A (en) * | 2019-04-09 | 2019-08-09 | 夏建伟 | A kind of preparation method of the food fibre powder containing peptide and the food fibre powder containing peptide of preparation |
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2020
- 2020-11-30 CN CN202011376750.0A patent/CN112493496A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102018183A (en) * | 2010-12-10 | 2011-04-20 | 广西大学 | Method for preparing dietary fiber via mechanical activation and enzymolysis by taking bean dregs as raw material |
| CN107647286A (en) * | 2017-08-07 | 2018-02-02 | 云南肠和健康科技股份有限公司 | The preparation method and bean dregs dietary fiber of a kind of bean dregs dietary fiber |
| CN110101087A (en) * | 2019-04-09 | 2019-08-09 | 夏建伟 | A kind of preparation method of the food fibre powder containing peptide and the food fibre powder containing peptide of preparation |
Non-Patent Citations (2)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113854489A (en) * | 2021-09-17 | 2021-12-31 | 哈尔滨商业大学 | Low-fat high-dietary-fiber bean curd and preparation method thereof |
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Application publication date: 20210316 |