CN102452739A - Treatment method for gluten water - Google Patents
Treatment method for gluten water Download PDFInfo
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- CN102452739A CN102452739A CN2010105176079A CN201010517607A CN102452739A CN 102452739 A CN102452739 A CN 102452739A CN 2010105176079 A CN2010105176079 A CN 2010105176079A CN 201010517607 A CN201010517607 A CN 201010517607A CN 102452739 A CN102452739 A CN 102452739A
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Abstract
The invention relates to a treatment method for gluten water. The method comprises: concentrating the gluten water to obtain a condensate and process water, wherein the process water contains insoluble protein. The method further comprises: mixing the process water and a flocculant solution, and carrying out air floating separation, wherein the flocculant is the material which can make the insoluble protein in the process flocculate and/or settle. With the method of the present invention, the insoluble protein in the process water can be effectively separated from the water, such that the yield of the gluten protein powder is substantially improved; the process water after the protein flocculating is recycled to carry out soaking for the corn, and washing for the germ and the fiber, such that the soaking and washing effect provided by the process water can basically meet the soaking and washing effect provided by the fresh water so as to significantly improve the quality of refined starch milk.
Description
Technical field
The present invention relates to a kind of treatment process of seitan water.
Background technology
The leaching process of starch is the chief component separating process of corn grain, and the separation of each integral part of corn grain has two kinds of dry method and wet methods, and lock out operation main be to grind, therefore, the branch of dry grinding and wet-milling is arranged.Wet-milling is the general technology of current corn starch industry, is mainly the corn process fragmentation of dipping back, takes off embryo, correct grinding and screening, to tell plumule, fibrous residue, makes the process of rough milk of starch.After starch wearable riddler preface was extracted, the gained milk of starch still was a coarse starch milk, still contains a large amount of insoluble proteins and soluble substance; And the concentration of powder slurry is also rarer, need make with extra care and concentrate, for processing and deep processing at last provides purified smart milk of starch; The purified method is to utilize the spinning principle, and coarse starch milk is separated, and tells the water that gently contains insoluble protein mutually; Be seitan water; Heavy phase is a milk of starch, removes soluble substance remaining in the milk of starch with the pure water washing again, promptly gets smart milk of starch.And isolated seitan water utilizes the method for spinning to concentrate once more; Obtain enriched material and process water, after enriched material is dehydrated, promptly get the gluten protein powder; Separate the process water obtain, directly cyclically utilizing is in the washing process of technique for soaking corn or plumule, fiber.On the one hand; Adopt the method for prior art to utilize the method for spinning to carry out spissated technology deficiency once more so that insoluble protein is fully separated to seitan water; Separation efficiency is lower, and causes the productive rate of gluten protein powder not high, on the other hand; After the direct cyclically utilizing of process water is in technique for soaking corn and plumule, the fibre washing technique, the immersion effect of corn and the remarkable variation of quality product.
Summary of the invention
It is high and directly with after the direct cyclically utilizing of process water is in technique for soaking corn and the milk of starch washing process to the objective of the invention is to overcome the productive rate of method gluten protein powder of prior art; The defective of the immersion effect of corn and the remarkable variation of washing effect of milk of starch provides the treatment process of the seitan water of a kind of corn soaking effect and cyclically utilizing to plumule that can either improve gluten protein powder productive rate and improve process water cyclically utilizing to technique for soaking corn, fibre washing technique.
Contriver of the present invention finds; Also contain a large amount of insoluble proteins in the process water that obtains after adopting the method for prior art to utilize the method for spinning to concentrate once more to seitan water, if directly with the direct cyclically utilizing of process water to technique for soaking corn, owing to the height of the protein content in the process water; Therefore can't fully soak out and incorporate the soluble protein in the corn in the water; And influence follow-up separating technology, same, the direct cyclically utilizing of the process water that prior art obtains in plumule, the fibre washing technique after; Also can't fully the soluble substance thorough washing in plumule, the fiber be come out, and can influence the quality of product.
The invention provides a kind of treatment process of seitan water, this method comprises seitan water concentrated, obtains enriched material and process water; Contain insoluble protein in the said process water; Wherein, this method also comprises mixes process water with flocculant solution, and the promoting the circulation of qi of going forward side by side is floating to be separated; Said flocculation agent is for making insoluble protein flocculation and/or the settled material in the process water.
Method of the present invention is through concentrating seitan water; Obtain enriched material and process water; And insoluble protein contained in the said process water flocculated, and making said insoluble protein natural subsidence and/or flocculation, the promoting the circulation of qi of going forward side by side is floating to be separated; Thereby reaching the insoluble protein that makes in the said process water effectively separates with water; With the albumen that obtains dewater, dry back and obtain gluten protein powder feed, thereby the insoluble protein in the process water after seitan water concentrated once more reclaims, and has improved the productive rate of gluten protein powder thus greatly.In addition, with make after the albumen flocculation process water once more the reuse circulation corn is soaked and plumule, fiber is washed, can reach basically and soak with fresh water and the effect of washing.The deficiency of the technology that the method that has remedied prior art is handled seitan water so that insoluble protein can fully separate.In addition, flocculation agent used among the present invention can not bring any toxicity to finished product, guarantees for food safety provides well yet.
Embodiment
According to the present invention, the treatment process of said seitan water comprises seitan water concentrated, obtains enriched material and process water, contains insoluble protein in the said process water, and wherein, this method also comprises mixes process water with flocculant solution, and the promoting the circulation of qi of going forward side by side is floating to be separated; Said flocculation agent is for making insoluble protein flocculation and/or the settled material in the process water.
Contriver of the present invention finds, flocculation agent is mixed with process water with the form of flocculant solution, can make it more even with the process water blended, makes insoluble protein flocculation in this process water and/or settled more abundant, complete.In addition; Contriver of the present invention finds that also the enriched material that obtains after normally seitan water being concentrated in the prior art directly carries out air supporting, and purpose is directly insoluble protein wherein to be separated; But; This method not only can't realize the abundant separation of insoluble protein, and the quality of the process water that obtains is also relatively poor, can influence the quality of the purified starch that makes behind the cyclically utilizing.And the at first ingenious flocculation agent that utilizes of contriver of the present invention combines the method for dissolved air flotation to be separated by flocculation and/or settled insoluble protein flocculation of the insoluble protein in the seitan water and/or sedimentation simultaneously, can reach significant separating effect.
According to the present invention, the solvent in the said flocculant solution can be the various solvents that can form solution with flocculation agent, and generally, the solvent in the said flocculant solution is a water.Said flocculation agent can be various can be with the insoluble protein in process water flocculation, sedimentation, and make its effective isolating flocculation agent from process water, under the preferable case, said flocculation agent can be ROHM and/or ZX-I and Poly aluminum Chloride (PAC).
More preferably under the situation, said polyacrylic number-average molecular weight can be 6,000,000-1,000 ten thousand dalton, and the number-average molecular weight of said ZX-I can be 6,000,000-1,000 ten thousand dalton.Said Poly aluminum Chloride (PAC) is a kind of inorganic flocculating agent, and its molecular formula is [Al
2(OH)
nCl
6-n]
m, wherein, n is 1-5, m≤10, basicity B=n/6 * 100%.
Contriver of the present invention finds; Poly aluminum Chloride (PAC) makes the fine particle thing in the said process water accumulate in the suspended substance that it forms larger particles on every side more easily; And ROHM and/or ZX-I make the suspended substance sedimentation of larger particles more easily, therefore, and in the ban after the aqueous solution with process water and Poly aluminum Chloride (PAC); With the aqueous solution of ROHM and/or ZX-I, can play better separating effect again.In addition; Contriver of the present invention also finds, the weight ratio of Poly aluminum Chloride (PAC) and ROHM and/or ZX-I is controlled at 2-5 in this flocculant solution, in the time of more preferably in the scope of 3-4.5; The layering of insoluble protein and water is more clear, and promptly separating effect is better.
Under the preferable case; After aqueous solution, before the aqueous solution of ROHM and/or ZX-I, also comprise the step of stirring with process water and Poly aluminum Chloride (PAC); Gathering fully to make the fine particle thing in Poly aluminum Chloride (PAC) and the process water is more thorough; Destroy in order to be beneficial to the Poly aluminum Chloride (PAC) fine particle thing that fully flocculates, can not destroy again simultaneously the PM for particulate matter that has flocculated, the time of said stirring is preferably 0.5-5 minute.
In the present invention, the solubleness of flocculation agent in water is moderate, therefore; The adjustable extent broad of the mass and size concentration of said flocculant solution; As, can be 0.1-5% (m/v), from taking all factors into consideration of cost and effect; The mass and size concentration of said ROHM and ZX-I flocculant solution is preferably 0.1-0.5% (m/v), and the mass and size concentration of said flocculant of polymeric aluminium chloride solution is preferably 1-5% (m/v).
According to method of the present invention; The adjustable extent broad of the consumption of said flocculant solution; For example, can be according to the consumption of how much regulating flocculant solution of the amount of insoluble protein in the process water, under the preferable case; The consumption of said flocculant solution makes that the amount of flocculation agent in said process water is 20-1000ppm; More preferably under the situation, the consumption of said flocculant solution makes that poly acryloyl acid and the amount of ZX-I flocculation agent in said process water are 20-100ppm, makes that the amount of flocculant of polymeric aluminium chloride in said process water is 200-1000ppm.
The mass and size concentration of insoluble protein generally can be 1.5-1.9% (m/v) in the said process water.
Above-mentioned m/v refers to mass and size concentration, and concrete implication comprises the quality (gram) of insoluble protein in quality (gram) or the every liter of process water that obtains after seitan water is concentrated of flocculation agent in every liter of flocculant solution.
Ppm representes the weight of contained solute in the solution of 1,000,000 parts of weight.The weight of the weight/solution of ppm=solute * 10
6Promptly contain 1 kilogram of (liter) solute in the solution of 100 kilograms (liter) like 1ppm.In the present invention, the concrete implication of ppm is that the consumption of flocculant solution in the said process water of 100 kilograms (liter) makes that the amount of flocculation agent is 5-100 kilogram (liter).
According to the present invention, process water and flocculant solution blended condition can be comprised blended time and blended temperature, for example, the said blended time can be 1-10 minute, more preferably 1-5 minute; Said blended temperature can be 30-70 ℃, more preferably 40-60 ℃.In order to make process water and flocculant solution blended more even, said process water and mixing preferably of flocculant solution are under agitation carried out.
According to the present invention, do not limit process water and flocculant solution blended mode are special, for example, can be static mixing, also can be dynamic mixing, also or the combination of two kinds of hybrid modes.Wherein, said static mixing can for: process water and flocculant solution at container, as are left standstill and mix in the equipment and leave standstill; Said dynamic mixing can for: will in another transport pipe, converge with being incorporated in the flow process from the process water of different transport pipes and flocculant solution and mix; Process water and flocculant solution are mixed through line mixer, and this mixture is delivered in the equipment of leaving standstill leaves standstill.
According to the present invention, with process water mix with flocculant solution and will by the flocculation and/or the isolating method of settled insoluble protein be the method for dissolved air flotation.To be the micro-bubble that utilizes high dispersing go in the adhesion process water by flocculation and/or settled seitan particle as carrier the method for said dissolved air flotation, makes its density float to the water surface on less than water, realizes process of solid-liquid separation.According to the present invention, the method for said dissolved air flotation comprises with process water and flocculant solution blended simultaneously or afterwards, in mixture, blasts air, makes the bubble adhesion that is formed by flocculation and/or settled seitan particle and with bubble floating.Wherein, As long as in mixture, blast conditions of air can with by flocculation and/or settled seitan particle by the bubble adhesion that forms by the air that feeds and with bubble floating; Forming the air supporting layer gets final product; Under the preferable case, the pressure of bubbling air can be the 0.2-0.4 MPa, and the size of bubble can be the 15-30 micron usually.The air supporting time can be 1-10 minute, is preferably 4-7 minute.
According to the present invention, can adopt various existing airfloat equipments to realize solid-liquid separation, will be for example, can utilize air flotation slot to carry out dissolved air flotation, the principle of promptly utilizing different suspensions of material and absorption bubble (gas molecule) is with seitan particle and water sepn.For example; The mixture of process water and the flocculant solution feed end by air flotation slot is got into, and aeration pump input gas electricity gets into the feed end of air flotation slot, and the gas that gets into air flotation slot is formed in the bubble diffusion bullet liquid by aeration head; Throw out and/or sediment that these bubbles will get into air flotation zone adhere to; And upwards floating along with flowing, and can not with the starch granules of bubble incorporation along with flowing gradually to settle, water obtains clarification gradually.The seitan particle that swims in the upper strata in a large number gathers and is called the higher liquid of concentration; Peeled by stripper plate from the air flotation slot discharge end then; And can filter; Downward gradually sedimentary starch granules is drawn when reaching finite concentration flows back to other operation, the air flotation slot middle part be clarifying process water, the dry matter content of the process water after the processing is below 1.3%.
According to the present invention, this method can also comprise the step that isolated insoluble protein is dehydrated.Said method that dehydrates and condition all can adopt method well known in the art and condition to carry out.For example, the exsiccant mode can be seasoning, forced air drying, the drying mode of various routines such as vacuum-drying.Said exsiccant condition can comprise that the exsiccant temperature is 80-100 ℃, and the exsiccant time can be 1-5 hour.
According to the present invention, the spissated method of seitan water can for example, be utilized the principle of spinning for various concentrated modes well known in the art, adopt disc separator that seitan water is concentrated, enriched material flows out from underflow, and stream flows out process water from the top.The solid content of the insoluble protein in the enriched material is generally 8-12 weight %.The mass and size concentration of insoluble protein generally can be 1.5-1.9% (m/v) in the said process water.
In the present invention, the light water that contains insoluble protein mutually that obtains after referring to the corn coarse starch milk separated of said seitan water.
To further describe in detail the present invention through specific embodiment below, following examples only are used to explain the present invention, but are not used for limiting scope of the present invention.
The model of air flotation slot is FXP300 * 600, available from institute of Wuhan grain section.
The measuring method of the concentration of insoluble protein is an Oven Method in the process water that obtains after seitan water is concentrated.
Adopt GB/T 5009.5-1985 to measure with the protein content in the feed that obtains behind the filtration cakes torrefaction (butt with feed is a benchmark).
ROHM flocculation agent, ZX-I flocculation agent and flocculant of polymeric aluminium chloride used among the following embodiment are respectively available from Shanghai sounds of nature bio tech ltd and Gongyi City's material for water treatment factory.
Embodiment 1
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
(1) process water [insoluble protein concentration is 1.85% (m/v)] that obtains after seitan water being concentrated 1000L places reaction kettle.
(2) be that 6,000,000 ZX-I flocculation agent is soluble in water with number-average molecular weight, make the mass and size specific concentration and be 0.05% solution; Poly aluminum Chloride (PAC) (n is 1-5, m≤10, basicity B=n/6 * 100%) is soluble in water, make the mass and size specific concentration and be 5% polymeric aluminum chlorides solution.And under 50 ℃; In the above-mentioned process water that obtains after seitan water is concentrated, add above-mentioned two kinds of flocculant aqueous solutions; The consumption of said ZX-I flocculant aqueous solution (25L) makes that the amount of ZX-I flocculation agent in process water is 12.5ppm; The consumption of the said flocculant of polymeric aluminium chloride aqueous solution (1L) makes that the amount of flocculant of polymeric aluminium chloride in process water is 50ppm, mixes 0.5 minute.
(3) mixed solution that step (2) is obtained is inserted and is carried out dissolved air flotation (pressure of bubbling air is 0.3 MPa, and the air supporting time can be 5 minutes) in the air flotation slot, and the dry matter content of the process water that obtains is 1.35 weight %, and separation upper strata seitan particle also filters.
(4) the seitan cake of particles that step (3) is obtained is dried down at 95 ℃ and is obtained feed (10 weight % moisture), and the protein content that gets in the feed with the butt instrumentation is 60% (m/m).
Embodiment 2
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
(1) process water [insoluble protein concentration is 1.96% (m/v)] that obtains after seitan water being concentrated 1000L places reaction kettle.
(2) be that 8,000,000 ROHM flocculation agent is soluble in water with number-average molecular weight, make the mass and size specific concentration and be 0.05% solution; Poly aluminum Chloride (PAC) (n is 1-5, m≤10, basicity B=n/6 * 100%) is soluble in water, make the mass and size specific concentration and be 5% polymeric aluminum chlorides solution.And under 40 ℃; In the above-mentioned process water that obtains after seitan water is concentrated, add above-mentioned two kinds of flocculant aqueous solutions; The consumption of said ROHM flocculant aqueous solution (25L) makes that the amount of ROHM flocculation agent in process water is 12.5ppm; The consumption of the said flocculant of polymeric aluminium chloride aqueous solution (1L) makes that the amount of flocculant of polymeric aluminium chloride in process water is 50ppm, mixes 3 minutes.
(3) mixed solution that step (2) is obtained is inserted and is carried out dissolved air flotation (pressure of bubbling air is 0.4 MPa, and the air supporting time can be 8 minutes) in the air flotation slot, and the dry matter content of the process water that obtains is 1.29 weight %, and separation upper strata seitan particle also filters.
(4) the seitan cake of particles that step (3) is obtained is dried down at 95 ℃ and is obtained feed (10 weight % moisture), and the protein content that gets in the feed with the butt instrumentation is 58% (m/m).
Embodiment 3
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
Method according to embodiment 1 is carried out albumen sepn to the process water that obtains after seitan water is concentrated; Different is; The consumption of said ZX-I flocculant aqueous solution (30L) makes that the amount of ZX-I flocculation agent in process water is 15ppm; The consumption of the said flocculant of polymeric aluminium chloride aqueous solution (0.9L) makes that the amount of flocculant of polymeric aluminium chloride in process water is 45ppm, and the dry matter content of the water that obtains after the filtration is 1.32 weight %.Filter cake is obtained the protein content 61% (m/m) in the feed 90 ℃ of following dryings.
Embodiment 4
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
Method according to embodiment 2 is carried out albumen sepn to the process water that obtains after seitan water is concentrated; Different is; With flocculant aqueous solution with seitan water is concentrated after the process water blended mode that obtains be the aqueous solution of adding Poly aluminum Chloride (PAC) earlier; And mix 2 minutes, and then add the polyacrylic aqueous solution, mixed 1 minute.The dry matter content of the process water that obtains is 1.23 weight %, and separation upper strata seitan also filters, and is 62% (m/m) with filter cake at the protein content that 90 ℃ of following dryings obtain in the feed.
Embodiment 5
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
Method according to embodiment 2 is carried out albumen sepn to the process water that obtains after seitan water is concentrated; Different is; With flocculant aqueous solution with seitan water is concentrated after the process water blended mode that obtains be the aqueous solution of adding Poly aluminum Chloride (PAC) earlier; And mix 2 minutes, and then add the polyacrylic aqueous solution, mixed 1 minute; The consumption (4L) of the aqueous solution of said Poly aluminum Chloride (PAC) (the mass and size specific concentration of Poly aluminum Chloride (PAC) is 2%) makes that the amount of flocculation agent in process water is 80ppm, and the consumption (20L) of the aqueous solution of said ROHM (polyacrylic mass and size specific concentration is 0.2%) makes that the amount of flocculation agent in process water is 40ppm.The dry matter content of the process water that obtains is 1.25 weight %, and separation upper strata seitan also filters, and is 60% (m/m) with filter cake at the protein content that 90 ℃ of following dryings obtain in the feed.
Embodiment 6
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
Method according to embodiment 2 is carried out albumen sepn to the process water that obtains after seitan water is concentrated; Different is; With flocculant aqueous solution with seitan water is concentrated after the process water blended mode that obtains be the aqueous solution of adding Poly aluminum Chloride (PAC) earlier; And mix 2 minutes, and then add the polyacrylic aqueous solution, mixed 1 minute; The consumption (3L) of the aqueous solution of said Poly aluminum Chloride (PAC) (the mass and size specific concentration of Poly aluminum Chloride (PAC) is 1%) makes that the amount of flocculation agent in process water is 30ppm, and the consumption (15L) of the said polyacrylic aqueous solution (polyacrylic mass and size specific concentration is 0.1%) makes that the amount of flocculation agent in process water is 15ppm.The dry matter content of the process water that obtains is 1.27 weight %, and separation upper strata seitan also filters, and is 59% (m/m) with filter cake at the protein content that 90 ℃ of following dryings obtain in the feed.
Embodiment 7
Present embodiment is used to explain the treatment process of seitan water provided by the invention.
Method according to embodiment 2 is carried out albumen sepn to the process water that obtains after seitan water is concentrated; Different is; The consumption (0.8L) of the aqueous solution of said Poly aluminum Chloride (PAC) (the mass and size specific concentration of Poly aluminum Chloride (PAC) is 5%) makes that the amount of flocculation agent in process water is 40ppm, and the consumption (80L) of the said polyacrylic aqueous solution (polyacrylic mass and size specific concentration is 0.05%) makes that the amount of flocculation agent in process water is 40ppm.The dry matter content of the process water that obtains is 1.38 weight %.Is 60% (m/m) with filter cake at the protein content that 90 ℃ of following dryings obtain in the feed.
Can find out by the foregoing description; Insoluble protein in the process water that obtains after adopting method of the present invention effectively to separate seitan water concentrated; And the quality of the fodder that obtains is better; With make after the albumen flocculation process water once more the reuse circulation corn is soaked and plumule, fiber is washed, can reach basically and soak with fresh water and the effect of washing.
Claims (12)
1. the treatment process of a seitan water, this method comprise seitan water are concentrated, and obtain enriched material and process water, contain insoluble protein in the said process water, it is characterized in that this method also comprises mixes process water with flocculant solution, and separation is floated in the promoting the circulation of qi of going forward side by side; Said flocculation agent is for making insoluble protein flocculation and/or the settled material in the process water.
2. method according to claim 1, wherein, said flocculant solution is the aqueous solution of flocculation agent, said flocculation agent is ROHM and/or ZX-I and Poly aluminum Chloride (PAC).
3. method according to claim 2, wherein, said polyacrylic number-average molecular weight is 6,000,000-1,000 ten thousand dalton, the number-average molecular weight of said ZX-I is 6,000,000-1,000 ten thousand dalton; The molecular formula of said Poly aluminum Chloride (PAC) is [Al
2(OH)
nCl
6-n]
m, wherein, n is 1-5, m≤10, basicity B=n/6 * 100%.
4. method according to claim 2 wherein, comprises earlier the aqueous solution with said process water and Poly aluminum Chloride (PAC) with process water and flocculant solution method of mixing, again with the aqueous solution of ROHM and/or ZX-I; The mass ratio of Poly aluminum Chloride (PAC) and ROHM and/or ZX-I is 2-5.
5. method according to claim 4 wherein, after the aqueous solution with process water and Poly aluminum Chloride (PAC), before the aqueous solution of ROHM and/or ZX-I, also comprises the step of stirring, and the time of said stirring is 1-5 minute.
6. method according to claim 4; Wherein, The mass and size concentration of insoluble protein is 1.5-1.9% in the said process water; The consumption of said flocculant solution makes that ROHM and the amount of ZX-I flocculation agent in said process water are 5-50ppm, makes that the amount of flocculant of polymeric aluminium chloride in said process water is 20-100ppm.
7. method according to claim 6, wherein, the mass and size concentration of ROHM and ZX-I flocculant solution is 0.1-0.5%, the mass and size concentration of flocculant of polymeric aluminium chloride solution is 1-5%.
8. according to claim 1 or 4 described methods, wherein, said process water and mixing under agitation of flocculant solution to be carried out, the blended temperature is 30-70 ℃, the blended time is 1-10 minute.
9. method according to claim 1; Wherein, The method of said dissolved air flotation comprises with process water and flocculant solution blended simultaneously or afterwards, in mixture, blasts air, makes the bubble adhesion that is formed by flocculation and/or settled seitan particle and with bubble floating.
10. method according to claim 9, wherein, the pressure of bubbling air is the 0.2-0.4 MPa, the air supporting time is 1-10 minute.
11. method according to claim 1, wherein, this method also comprises the step that isolated insoluble protein is dehydrated.
12. method according to claim 1, wherein, the light water that contains insoluble protein mutually that said seitan water obtains after referring to the corn coarse starch milk separated.
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| CN2010105176079A CN102452739A (en) | 2010-10-18 | 2010-10-18 | Treatment method for gluten water |
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| CN106905439A (en) * | 2017-04-13 | 2017-06-30 | 潍坊盛泰药业有限公司 | A kind of protein treatment process in Starch Production |
| CN106905439B (en) * | 2017-04-13 | 2019-07-23 | 潍坊盛泰药业有限公司 | A kind of protein treatment process in Starch Production |
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Application publication date: 20120516 |