CN102084985A - Method for preparing water-soluble dietary fiber through carrying out extruding, bulking and alkali treatment on bean dregs - Google Patents
Method for preparing water-soluble dietary fiber through carrying out extruding, bulking and alkali treatment on bean dregs Download PDFInfo
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- CN102084985A CN102084985A CN2010102845057A CN201010284505A CN102084985A CN 102084985 A CN102084985 A CN 102084985A CN 2010102845057 A CN2010102845057 A CN 2010102845057A CN 201010284505 A CN201010284505 A CN 201010284505A CN 102084985 A CN102084985 A CN 102084985A
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Abstract
The invention belongs to the technical field of foods, and in particular relates to a method for preparing water-soluble dietary fiber through using bean dregs as a dietary fiber raw material and carrying out extruding, bulking and alkali treatment on the bean dregs. The method comprises the following steps of: crushing the bean dregs, swelling the crushed bean dregs with a certain quantity of alkali (sodium hydroxide), then dissolving alkali-soluble hemicellulose in the bean dregs, and directly or indirectly converting a part of macromolecular fiber polymers into the water-soluble dietary fiber through utilizing the further extruding and bulking actions of double screws, i.e., the high temperature, high pressure and high shearing actions during extruding and bulking. The water-soluble dietary fiber processed by using the method comprises pentosan, such as water-soluble and alkali-soluble pentosan. The water-soluble dietary fiber has the advantages of unique physiological function and better physical property, high yield, good color and luster, low cost, easiness of industrial production and wide application prospects in food and medicine industries.
Description
Invention field
The present invention relates to the production method of water-soluble dietary fiber, said water-soluble dietary fiber has special physiological properties and physicochemical property preferably.The invention belongs to food technology field.
Background of invention
China is famous in the world soybean producing country and country of consumption, and the bean product processing capacity is big, produces a large amount of accessory substance bean dregs.Bean dregs are except that small part is used as feed, and major part discards as waste material, and the wasting of resources is very big, cause environmental pollution simultaneously again.Contain rich dietary fiber in the bean dregs, be about about 60%, but water-soluble dietary fiber only accounts for about 2% of total fiber, can not satisfy the requirement of nutrition dietary fiber.Therefore, improve the yield of water-soluble dietary fiber in the bean dregs, both can increase the added value of soybean prod, can satisfy the growing dietary fiber demand of people again, have certain theoretical significance and economic worth.
Dietary fiber mainly be a kind of can not be by the carbohydrate of human consumption, can be divided into two fundamental types whether to be dissolved in the water: water-soluble fibre and non-soluble fiber.Cellulose, hemicellulose and lignin are 3 kinds of common non-soluble fibers, are present in the plant cell wall.Soybean-drag fiber element, hemicellulose level are about 13%, 26% respectively.Alkali is the swelling agent of fiber, and cellulose structure under the effect of alkali becomes loose in the bean dregs.Hemicellulose is partly dissolved in water, almost completely dissolving in diluted alkaline; Extrusion technique integrates multiple unit operations such as conveying, mixing, heating and pressurization, and material is subjected to high temperature, high shear forces in extruder barrel, realizes that at short notice the big molecule fibre-forming polymer of part directly or indirectly is converted into water-soluble dietary fiber.Extrusion alkali treatment bean dregs prepare water-soluble dietary fiber can improve the water-soluble dietary fiber yield greatly, and have product color more shallow, be easy to advantages such as suitability for industrialized production.
At present, existing is the invention of feedstock production fiber food with bean dregs openly.For example, CN 02103720 discloses a kind of low-yield fiber diet prescription and manufacture craft.Concrete technology is that raw material wheat bran, bean dregs, mushroom, corncob are learned through acid, alkalization and handled, and passes through rinsing again to neutral, dehydration, and drying is made food fibre powder.Food fibre powder is added auxiliary material, through the expanded food that squeezes out different shape.But, be raw material with bean dregs, the method that adopts extrusion alkali treatment bean dregs to prepare water-soluble dietary fiber is not seen open report.
The objective of the invention is the bean dregs that the source is wide, cost is low are made full use of, adopt extrusion alkali treatment bean dregs to prepare water-soluble dietary fiber, it is with a wide range of applications in food and medicine industry.
Summary of the invention
The preparation method that the purpose of this invention is to provide water-soluble dietary fiber.
Below will specifically describe this working of an invention method.
It is as follows with bean dregs to be that raw material is produced the technological process of water-soluble dietary fiber:
The raw material bean dregs mix with a certain amount of sodium hydroxide solution, make it be in alkali condition after, prepare water-soluble dietary fiber in conjunction with the twin-screw extruding and puffing technology.Concrete technological process as shown in drawings.
Main points are as follows:
1, pulverizes: bean dregs are pulverized, crossed 30 mesh sieves.
2, according to bean dregs butt 0.1～5% (for example, 0.5～5%, according to appointment 1～2%) proportioning add NaOH, material moisture be 0.1～30.0%w/w (for example, 0.5～10%w/w, according to appointment 1～5%w/w), mix with the NaOH wiring solution-forming and with bean dregs.Place 0.5～50 hour (for example, 1,2,4,5,6,7 or 20 hours).
3, the material with alkali treatment places in the extruder barrel, carries out according to the extrusion process parameters of setting.Wherein during extrusion
(a) material moisture is 0.1～30.0%w/w (for example, 0.5～10%w/w, 1～5%w/w) existence according to appointment
(b) extrusion temperature is 40～400 ℃ (for example 200～300 ℃, 250 ℃ according to appointment)
(c) the extruding screw rotating speed is 10～300r/min (for example 110r/min).
4, enzymolysis: adjust pH to 6, to press 5% of substrate and add high temperature resistant AMS, 95 ℃ of constant temperature stir 2h.Cooling material to 60 ℃, adjust pH to 8 press 5% of substrate and is added alkali protease, 55 ℃ of constant temperature stirring 2h.
5, filter: join 300 order filter cloth suction filtrations with Buchner funnel, with 60 ℃ of warm water washing filter residues for several times,, get filter residue and put into 60 ℃ of dry for standby of constant temperature air dry oven again to the filtrate clarification;
6, alcohol precipitation: adopting filtrate and ethanol volume ratio is to carry out at 1: 4;
7, centrifugal: centrifugal 20min under the condition of 4000r/min.
Description of drawings
Fig. 1 bean dregs are the process flow diagram that raw material is produced water-soluble dietary fiber
Embodiment
The present invention also will be described further by the mode of specific embodiment, these embodiment only be illustrative and the meaning of the scope of the invention without limits.
Bean dregs are pulverized, crossed 30 mesh sieves.Get the 1kg bean dregs and place container, according to the proportioning of bean dregs butt 5% add NaOH, material moisture is 27%w/w, mix with the NaOH wiring solution-forming and with bean dregs.After mixing leaves standstill 12h, control twin-screw extruder temperature (180 ℃), screw speed (100r/min) pressing materials.Expanded drying materials places container after pulverizing, and adjust pH to 6 is pressed 5% of substrate and added high temperature resistant AMS, and 95 ℃ of constant temperature stir 2h.Cooling material to 60 ℃, adjust pH to 8 press 5% of substrate and is added alkali protease, 55 ℃ of constant temperature stirring 2h.After enzymolysis finishes, join 300 order filter cloth suction filtrations with Buchner funnel, then with 60 ℃ of warm water washing filter residues for several times, adopting filtrate and ethanol volume ratio is to carry out alcohol precipitation 1h, the condition of 4000r/min under centrifugal 20min, collecting precipitation thing at 1: 4.
Claims (13)
1. the production method of a water-soluble dietary fiber may further comprise the steps:
(a) provide dietary fibre materials;
(b) dietary fibre materials is carried out alkali treatment;
(c) raw material to step (b) processing gained carries out the extrusion processing;
(d) water-soluble dietary fiber of separating step (c) extraction.
2. the process of claim 1 wherein that dietary fibre materials derives from bean product accessory substance bean dregs.
3. the process of claim 1 wherein that the alkali of step (b) is NaOH.
4. the process of claim 1 wherein that step (c) adopts twin-screw extruder.
5. the process of claim 1 wherein that the water-soluble dietary fiber that extracts contains arabinose sill glycan.
6. each method of aforementioned claim, alkali treatment comprise sodium hydroxide solution are placed dietary fibre materials.
7. the method for claim 6, wherein the sodium hydroxide solution compound method is as follows:
(a) addition of NaOH is 0.1%～5% (for example, 0.5～5%, according to appointment 1～2%) of bean dregs butt.
(b) amount of water is with 0.1～30.0%w/w (for example, 0.5～10%w/w, 1～5%w/w) existence according to appointment of bean dregs moisture.
(c) (a) is dissolved in to be made into concentration in (b) be 0.1～20.0% the NaOH aqueous solution (for example, 0.5～5%, according to appointment 1～2%).
8. the method for claim 6, wherein the dietary fibre materials alkali treatment time exists with 0.5～50 hour (for example, 1,2,4,5,6,7 or 20 hours).
9. each method of claim 6-8 is wherein carried out alkali treatment (for example 20～30 ℃, 25 ℃ according to appointment) to dietary fibre materials between 10～50 ℃.
10. aforesaid right requires each method, and wherein the twin-screw extrusion is handled and comprised control material moisture, temperature and screw speed.
11. the method for claim 10, wherein to handle be that material with alkali treatment places in the extruder barrel to extrusion, carries out according to the extrusion process parameters of setting.
12. the method for claim 11 is wherein during extrusion
(a) extrusion temperature is 40～400 ℃ (for example 200～300 ℃, 250 ℃ according to appointment)
(b) the extruding screw rotating speed is 10～300r/min (for example 110r/min).
13. the water-soluble dietary fiber that the method by aforementioned claim obtains.
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| CN2010102845057A CN102084985A (en) | 2010-09-12 | 2010-09-12 | Method for preparing water-soluble dietary fiber through carrying out extruding, bulking and alkali treatment on bean dregs |
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| CN2010102845057A CN102084985A (en) | 2010-09-12 | 2010-09-12 | Method for preparing water-soluble dietary fiber through carrying out extruding, bulking and alkali treatment on bean dregs |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356852A (en) * | 2011-09-15 | 2012-02-22 | 西南大学 | Method for improving water-soluble dietary fibers in bean dregs |
| CN102940198A (en) * | 2012-11-12 | 2013-02-27 | 李宗军 | Noodles rich in soybean dietary fibers and processing method thereof |
| CN103005470A (en) * | 2013-01-10 | 2013-04-03 | 迟玉杰 | Method for preparing soluble dietary fibers of bean dregs |
| CN103169098A (en) * | 2013-03-28 | 2013-06-26 | 新疆农垦科学院 | Method for extracting soluble dietary fiber |
| CN105341907A (en) * | 2015-11-04 | 2016-02-24 | 沈阳师范大学 | Microcapsule prepared by embedding wood frog egg polypeptide with composite wall material and embedding method |
| CN108065216A (en) * | 2017-12-29 | 2018-05-25 | 余长江 | A kind of nutrition bean dregs, its preparation method and meals bean dregs |
| CN109320618A (en) * | 2018-10-09 | 2019-02-12 | 沈阳师范大学 | A kind of method that extrusion collaboration alkaline process improves cereals starch extraction rate |
| CN109363185A (en) * | 2018-09-06 | 2019-02-22 | 山东禹王生态食业有限公司 | A kind of high swelling property bean dregs Process for preparing hydrogels |
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| CN101156691A (en) * | 2007-09-11 | 2008-04-09 | 江苏省农业科学院 | A production process of high activity cmaize peel food fibre and its products |
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| CN101156691A (en) * | 2007-09-11 | 2008-04-09 | 江苏省农业科学院 | A production process of high activity cmaize peel food fibre and its products |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356852A (en) * | 2011-09-15 | 2012-02-22 | 西南大学 | Method for improving water-soluble dietary fibers in bean dregs |
| CN102940198A (en) * | 2012-11-12 | 2013-02-27 | 李宗军 | Noodles rich in soybean dietary fibers and processing method thereof |
| CN102940198B (en) * | 2012-11-12 | 2014-08-20 | 李宗军 | Noodles rich in soybean dietary fibers and processing method thereof |
| CN103005470A (en) * | 2013-01-10 | 2013-04-03 | 迟玉杰 | Method for preparing soluble dietary fibers of bean dregs |
| CN103169098A (en) * | 2013-03-28 | 2013-06-26 | 新疆农垦科学院 | Method for extracting soluble dietary fiber |
| CN105341907A (en) * | 2015-11-04 | 2016-02-24 | 沈阳师范大学 | Microcapsule prepared by embedding wood frog egg polypeptide with composite wall material and embedding method |
| CN108065216A (en) * | 2017-12-29 | 2018-05-25 | 余长江 | A kind of nutrition bean dregs, its preparation method and meals bean dregs |
| CN108065216B (en) * | 2017-12-29 | 2021-04-30 | 余长江 | Nutritional bean dregs, preparation method thereof and dietary bean dregs |
| CN109363185A (en) * | 2018-09-06 | 2019-02-22 | 山东禹王生态食业有限公司 | A kind of high swelling property bean dregs Process for preparing hydrogels |
| CN109320618A (en) * | 2018-10-09 | 2019-02-12 | 沈阳师范大学 | A kind of method that extrusion collaboration alkaline process improves cereals starch extraction rate |
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Application publication date: 20110608 |