CN101664099B - Method for producing cottonseed germ materials used in low-temperature pretreatment production of gossypol-removed cottonseed protein - Google Patents
Method for producing cottonseed germ materials used in low-temperature pretreatment production of gossypol-removed cottonseed protein Download PDFInfo
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- CN101664099B CN101664099B CN200810119486.5A CN200810119486A CN101664099B CN 101664099 B CN101664099 B CN 101664099B CN 200810119486 A CN200810119486 A CN 200810119486A CN 101664099 B CN101664099 B CN 101664099B
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Abstract
The invention provides a method for producing cottonseed germ materials used in low-temperature pretreatment production of gossypol-removed cottonseed protein. The method comprises: cleaning and removing impurities in delinted cottonseeds; husking the cottonseeds after impurity removal; obtaining mixture of cottonseed kernels and cottonseed husks; repeatedly separating the mixture by use of a screening and/or winnowing method; obtaining the cottonseed kernels in which the content of the cottonseed husks is less than or equal to 18 percent; softening the cottonseed kernels at a temperature lower than or equal to 80 DEG C; rolling the cottonseed kernels into germ sheets; adjusting quality at a temperature lower than or equal to 80 DEG C; and obtaining germ materials. The germ materials produced by use of the method have the advantages of good shape, high strength, less breakable property, good permeability during extraction, short seepage time, low content of residual oil and gossypol in meal after oil extraction and gossypol removal, capability of continuous production and capability of maintaining the original nutritional value of protein.
Description
Technical field
The invention belongs to vegetable protein production technical field, particularly, the present invention relates to a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment.
Background technology
China is Yi Gechanmian big country, and cottonseed resource is very abundant, contains rich in protein in cottonseed.But traditional high temperature steams stir-fry and the pre-prepressing oil-producing technique of high pressure has caused protein denaturation in cotton dregs, nutriture value effect incurs loss; And the content of noxious material in cotton dregs---gossypol is still higher.The at present production of cottonseed material embryo is general adopts productions of peeling off of common decorticator, expects that shell-containing rate in embryo, down content, impure amount are all larger, affect the normal operation of subsequent handling and the quality of cottonseed protein product.In prior art 00134520.6,200510017415.0,200510124534.6,200710015284.1, specification requirement to cottonseed material embryo is disclosed, but the technological parameter that does not provide the concrete production method of cottonseed material embryo and how to control cottonseed material embryo, and do not relate to how carrying out serialization industrial production.
Summary of the invention
Term used herein has the implication that those of ordinary skill in the related art of the present invention understand conventionally.
Unless otherwise indicated, percentage composition as herein described is weight percentage.
The object of the invention is to, for avoiding above shortcoming of the prior art, the serialization industrial process of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment that provide that a kind of technique is simple, reliable, raw material availability is high, shell-containing rate, kernel-containing rate is easy to control.
For foregoing invention object, the invention provides following technical scheme:
On the one hand, the invention provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, the method includes the steps of:
A. the cottonseed after stripping suede is cleared up to impurity elimination, described cleaning impurity elimination adopts selection by winnowing, or selection by winnowing and magnetic separation, makes impurity content≤0.5%, and the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. to the processing of peeling off of the cottonseed after processing; Obtain Cotton Seed and cotton seed hulls compound;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and the separation of described benevolence shell is the method for using screening and/or selection by winnowing; The cotton seed hulls that obtains containing the Cotton Seed of cotton seed hulls after separation and contain Cotton Seed; And Cotton Seed content≤1% in the cotton seed hulls that makes to obtain;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, and preferably selection by winnowing and screening, separated by the cotton seed hulls in Cotton Seed, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. in steps d, obtain containing the cotton seed hulls of Cotton Seed, return in step c, carry out again separated;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%, is preferably 9～11%, most preferably is 10%; Described softening preferably carries out in softening kettle;
G. the Cotton Seed after softening is rolled into embryo sheet, the thickness≤0.5mm of embryo sheet, is preferably 0.25～0.3mm;
H. embryo sheet is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Described modified be preferably dry modified; Material embryo water content≤7% obtaining after modified, is preferably 3～5%.
Preferably, in the method for the invention, the cottonseed water content of shelling after suede described in step a is 7～16%, is preferably 9～13%; Down content is 2～6%, is preferably 2～4%; Further preferably, impurity content≤0.5% of the cottonseed after step a processing.
Preferably, in the method for the invention, only comprise described a, b, c, d, e, f, g and h step.
On the other hand, the invention provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, described method comprises the steps:
a。Cottonseed after stripping suede is cleared up to impurity elimination, and described cleaning impurity elimination adopts selection by winnowing, or selection by winnowing and magnetic separation, makes impurity content≤0.5%, and the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. to the processing of peeling off of the cottonseed after processing, obtain the compound of cotton seed hulls and Cotton Seed;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and the separation of described benevolence shell is the method for using screening and/or selection by winnowing; After separation, obtain the Cotton Seed containing cotton seed hulls, obtain containing Cotton Seed and the cotton seed hulls of the cottonseed of strip off not simultaneously;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, and preferably selection by winnowing and screening, separated by the cotton seed hulls in Cotton Seed, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. in steps d, obtain containing the cotton seed hulls of a small amount of Cotton Seed, return in step c, carry out again separated;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%, is preferably 9～11%, most preferably is 10%; Described softening preferably carries out in softening kettle;
G. the Cotton Seed after softening is rolled into embryo sheet, embryo sheet thickness≤0.5mm, is preferably 0.25～0.3mm;
H. embryo sheet is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Described modified be preferably dry modified; Material embryo water content≤7% obtaining after modified, is preferably 3～5%;
I. to step c, separation obtains containing Cotton Seed and not the cotton seed hulls of the cottonseed of strip off carry out that benevolence shell is separated for the second time, cotton seed hulls is separated, and in the cotton seed hulls that makes to obtain containing benevolence amount≤1%, preferably≤0.5%; Obtain a small amount of Cotton Seed and the cottonseed of strip off not, a small amount of Cotton Seed that separation is obtained turns back to step b with the cottonseed of not strip off and again peels off separated simultaneously.
Preferably, in method of the present invention, only comprise described a, b, c, d, e, f, g, h and i step.
Another aspect, the invention provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, and described method comprises the steps:
A. the cottonseed after stripping suede is cleared up to impurity elimination, described cleaning impurity elimination adopts selection by winnowing, or selection by winnowing and magnetic separation, makes impurity content≤0.5%, and the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. to the processing of peeling off of the cottonseed after processing, obtain the compound of cotton seed hulls and Cotton Seed;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and the separation of described benevolence shell is the method for using screening and/or selection by winnowing; After separation, obtain the Cotton Seed containing cotton seed hulls, obtain the cotton seed hulls containing Cotton Seed simultaneously;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, and preferably selection by winnowing and screening, separated by the cotton seed hulls in Cotton Seed, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. in steps d, obtain containing the cotton seed hulls of Cotton Seed, return in step c, carry out again separated;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%, is preferably 9～11%, most preferably is 10%; Preferably, described softening in softening kettle carries out;
G. the Cotton Seed after softening is rolled into embryo sheet, embryo sheet thickness≤0.5mm, is preferably 0.25～0.3mm;
H. embryo sheet is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Described modified be preferably dry modified; Material embryo water content≤7% obtaining after modified, is preferably 3～5%;
I. the cotton seed hulls containing Cotton Seed that separation obtains to step c carries out benevolence shell separation for the second time, cotton seed hulls is separated, and contain benevolence amount≤1% in the cotton seed hulls that makes to obtain, be preferably≤0.5%; Obtain containing on a small quantity the Cotton Seed of cotton seed hulls simultaneously; The Cotton Seed that contains on a small quantity cotton seed hulls that separation is obtained turns back to and in steps d, again carries out selection by winnowing and/or screening
Preferably, in method of the present invention, only comprise described a, b, c, d, e, f, g, h and i step.
On the one hand, the invention provides the prepared cottonseed material embryo of any method according to the present invention again.
Compared with prior art, the present invention has following obvious advantage:
Production technology of the present invention is simple, reliable, cold operation, do not affect the nutriture value effect of protein, cotton seed hulls content in Cotton Seed, the Cotton Seed content in cotton seed hulls are easily controlled, and can produce continuously, and the material embryo of production is clean, processing performance good, blank fines content is few, good penetrability during leaching, extraction time is short, is conducive to the operation of subsequent handling.
Accompanying drawing explanation
Below, describe by reference to the accompanying drawings embodiments of the invention in detail, wherein:
Fig. 1 is the process flow diagram of the cottonseed material embryo production method described in embodiment 1;
Fig. 2 is the process flow diagram of the cottonseed material embryo production method described in embodiment 2;
Fig. 3 is the process flow diagram of the cottonseed material embryo production method described in embodiment 3.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.But these embodiment only limit to the present invention is described, be not used in and limit the scope of the invention.
embodiment 1
As shown in Figure 1, the present embodiment provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, and its concrete production stage is:
A. using water content is 9～13%, and the cottonseed that down content is 2～4%, through selection by winnowing, or use selection by winnowing and magnetic separation to process simultaneously and remove impurity, make cottonseed impurity content≤0.5%, the air quantity of selection by winnowing regulates and makes only to have velveteen and impurity to blow out, and 2,3,4% is all the cottonseed down content that can select; The water content of raw material cottonseed is too high, too low all can affect normally carrying out of subsequent handling, and water content 9,11,13% is all the raw material cottonseed that can select;
B. by removing cottonseed after impurity, input to the processing of peeling off in decorticator, obtain the compound of cotton seed hulls, Cotton Seed, need evenly during charging, stable, every the material situation of one hour observation decorticator feed inlet and outlet, material should be uniformly distributed; According to the size of cottonseed moisture and down content, regulate in time gap of tooth roller, make it the good effect of peeling off, and do not cause the overbreak of seed benevolence;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and described separation is the method for using screening and/or selection by winnowing, and for example, screening can adopt the known equipment such as auger sieve or reciprocating sieve; The cotton seed hulls that obtains containing the Cotton Seed of cotton seed hulls after separation and contain Cotton Seed; And Cotton Seed content≤1% in the cotton seed hulls that makes to obtain;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, preferably selection by winnowing and screening, for example, can use the equipment of ZL200520200377.8, the cotton seed hulls of carrying secretly in Cotton Seed and velveteen are separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain, in Cotton Seed, containing a small amount of cotton seed hulls is favourable to subsequent handling, to be no more than 18% for well, obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. to the cotton seed hulls containing Cotton Seed obtaining in steps d, return to the cycling of then carrying out step c-d in step c, until cotton seed hulls content≤18% in the Cotton Seed obtaining;
F. in steps d and completing steps c-d cycling and the Cotton Seed that obtains softens, the softening time is 20～30 minutes, softening temperature≤80 ℃, and the Cotton Seed moisture of controlling after softening is 8～12%, is preferably 9～11%, most preferably is 10%; Suitable moisture content is conducive to roll embryo, and the material after softening is softening thorough; Described softening can adopt softening kettle or softening screw feeder, preferably in softening kettle, carries out;
G. the Cotton Seed after softening is rolled into embryo sheet, the thickness≤0.5mm of embryo sheet, preferably, 0.25～0.3mm; Embryo sheet is even, solid, the gap on embryo sheet became uneven capable of regulating roll both sides;
H. embryo sheet is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified, described modified be preferably dry modified; After modified, obtain cottonseed material embryo water content≤7%, be preferably 3～5%.
In said method, the cottonseed water content of shelling after suede described in step a is 7～16%, is preferably 9～13%; Down content is 2～6%, is preferably 2～4%; Preferably, impurity content≤0.5% of the cottonseed after step a processing.
Owing to having adopted said method, make to expect that embryo is shaped, be difficult for brokenly, cross 30 mesh sieves, fines content≤8%, has guaranteed that subsequent handling carries out smoothly, does not stop up; Due to the good penetrability of embryo sheet, extraction time shortened to 110～130 minutes by original 120～180 minutes; Said method, makes Cotton Seed content≤1% in cotton seed hulls become simple with being controlled to of cotton seed hulls content≤18% in Cotton Seed, is easy to serialization industrial production; In the cottonseed protein product that subsequent handling obtains, Residual oil average content can be reduced to 1%～1.5%, and liquid chromatography for measuring free gossypol content is less than 100ppm, is residually moltenly less than 0.05%.
embodiment 2
As shown in Figure 2, the present embodiment provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, and its concrete production stage is:
A. using water content is 7～16%, and the cottonseed that down content is 2～6%, through selection by winnowing, or selection by winnowing and magnetic separation are processed and are removed impurity, make cottonseed impurity content≤0.5%, the air quantity of selection by winnowing regulates and makes only to have velveteen and impurity to blow out, and 2,3,4,5,6% is all the cottonseed down content that can select; The water content of raw material cottonseed is too high, too low all can affect normally carrying out of subsequent handling, and water content 7,9,11,13,16% is all the raw material cottonseed that can select;
B. by removing cottonseed after impurity, input to the processing of peeling off in decorticator, obtain the compound of cotton seed hulls, Cotton Seed, need evenly during charging, stable, every the material situation of one hour observation decorticator feed inlet and outlet, material should be uniformly distributed; According to the size of cottonseed moisture, seed size and down content, regulate in time gap of tooth roller, make it the good effect of peeling off, and do not cause the overbreak of seed benevolence;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and described separated benevolence shell is the method for using screening and/or selection by winnowing, and for example, screening can adopt the known equipment such as auger sieve or vibratory sieve; After separation, obtain containing the Cotton Seed of cotton seed hulls and contain Cotton Seed and the cotton seed hulls of strip off cottonseed not; By selecting suitable sieve aperture shape and size, regulate the vibration frequency of sieve, obtain the cotton seed hulls containing Cotton Seed, and the cottonseed content of the not strip off of carrying secretly in this cotton seed hulls is 2% left and right;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, preferably selection by winnowing and screening, for example, can use the equipment of ZL200520200377.8, the cotton seed hulls of carrying secretly in Cotton Seed and velveteen are separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain, in Cotton Seed, containing a small amount of cotton seed hulls is favourable to subsequent handling, to be no more than 18% for well, obtain the cotton seed hulls containing a small amount of Cotton Seed simultaneously;
E. to the cotton seed hulls containing a small amount of Cotton Seed obtaining in steps d, return to the cycling of then carrying out step c, i, d in step c, until in cotton seed hulls content≤18% in the Cotton Seed that finally makes to obtain the cotton seed hulls that makes to obtain containing benevolence amount≤1%, be preferably≤0.5%;
F. the cycling of that steps d is obtained and completing steps c, i, d and the Cotton Seed that obtains soften, the softening time is 20～30 minutes, softening temperature≤80 ℃, and the Cotton Seed moisture of controlling after softening is 8～12%, be preferably 9～11%, most preferably be 10%; Suitable moisture content is conducive to roll embryo, and the material after softening is softening thorough; Described softening preferably carries out in softening kettle;
G. the Cotton Seed after softening is rolled into embryo sheet, the thickness≤0.5mm of embryo sheet, is preferably 0.25～0.3mm; Embryo sheet is even, solid, the gap on embryo sheet became uneven capable of regulating roll both sides;
H. to embryo sheet, carry out modified; Described modified being preferably dried modifiedly, and the modified time is 10～30 minutes, and embryo sheet temperature≤80 ℃ when modified obtain cottonseed material embryo water content≤7% after modified, are preferably 3～5%;
I. to step c, separation obtains containing Cotton Seed and not the cotton seed hulls of the cottonseed of strip off carry out that benevolence shell is separated for the second time, for example, can use equipment such as beating sieve, use splash bar sieves after the cotton seed hulls that contains Cotton Seed and whole cottonseed is broken up, and isolates cotton seed hulls; Recycling cottonseed and cotton seed hulls vary in weight, and adopt the equipment such as gravity preparation, air draught choosing, cotton seed hulls is separated, and contain benevolence amount≤1% in the cotton seed hulls that makes to obtain, preferably≤0.5%; Obtain Cotton Seed and the cottonseed of strip off not simultaneously, the cottonseed of the Cotton Seed that separation is obtained and not strip off turns back to step b and again peels off separated, the compound of the cotton seed hulls obtaining and Cotton Seed is carried out to the cycling of c, i, d, until in cotton seed hulls content≤18% in the Cotton Seed that finally makes to obtain the cotton seed hulls that makes to obtain containing benevolence amount≤1%, be preferably≤0.5%.
The present embodiment is except having the advantage of embodiment 1, and processing arrangement is more reasonable, and owing to having increased step I, the cottonseed of the not strip off of 2% left and right of carrying secretly in the cotton seed hulls that step c separation is obtained is recycled, thereby has reduced waste.
Referring to Fig. 3, the present embodiment provides a kind of production method of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, and its concrete steps are:
A. using water content is 7～16%, down content is 2～6% cottonseed, through selection by winnowing, or, selection by winnowing and magnetic separation are processed and are removed impurity, make cottonseed impurity content≤0.5%, the adjusting of the air quantity of selection by winnowing makes only to have velveteen and impurity to blow out, and 2,3,4,5,6% is all the cottonseed down content that can select; The water content of raw material cottonseed is too high, too low all can affect normally carrying out of subsequent handling, and water content 7,9,11,13,16% is all the raw material cottonseed that can select;
B. by removing cottonseed after impurity, input to the processing of peeling off in decorticator, obtain the compound of cotton seed hulls, Cotton Seed, need evenly during charging, stable, every the material situation of one hour observation decorticator feed inlet and outlet, material should be uniformly distributed; According to the size of cottonseed moisture, seed size and down content, regulate in time gap of tooth roller, make it the good effect of peeling off, and do not cause the overbreak of seed benevolence;
C. the cotton seed hulls obtaining peeling off, Cotton Seed compound carry out benevolence shell separation for the first time, and described separation is the method for using screening and/or selection by winnowing, and for example, screening can adopt the known equipment such as auger sieve or reciprocating sieve; The cotton seed hulls that obtains containing the Cotton Seed of cotton seed hulls after separation and contain Cotton Seed;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, preferably selection by winnowing and screening, for example, can use the equipment of ZL200520200377.8, the cotton seed hulls of carrying secretly in Cotton Seed and velveteen are separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain, in Cotton Seed, containing a small amount of cotton seed hulls is favourable to subsequent handling, to be no more than 18% for well, obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. the cotton seed hulls containing Cotton Seed obtaining in steps d is returned to step c, then carry out the cycling of step c, i, d, until in cotton seed hulls content≤18% in the Cotton Seed that finally makes to obtain the cotton seed hulls that makes to obtain containing benevolence amount≤1%, be preferably≤0.5%;
F. to steps d and complete the cycling of c, i, d and the Cotton Seed that obtains softens, the softening time is 20～30 minutes, temperature of charge≤80 ℃ when softening, and the Cotton Seed moisture of controlling after softening is 8～12%, is preferably 9～11%, most preferably is 10%; Suitable moisture content is conducive to roll embryo, and the material after softening is softening thorough; Described softening preferably carries out in softening kettle;
G. the Cotton Seed after softening is rolled into embryo sheet, the thickness≤0.5mm of embryo sheet, preferably 0.25～0.3mm; Embryo sheet is even, solid, the gap on embryo sheet became uneven capable of regulating roll both sides;
H. embryo sheet is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified, and material embryo water content≤7%, is preferably 3～5%; Described modified be preferably dry modified; After modified, obtain cottonseed material embryo.
I. the cotton seed hulls containing Cotton Seed that separation obtains to step c carries out benevolence shell separation for the second time, such as using the equipment such as sieve of beating, after using splash bar that the cotton seed hulls that contains Cotton Seed is broken up, cotton seed hulls is separated, and in the cotton seed hulls that makes to obtain containing benevolence amount≤1%, preferably≤0.5%; Obtain containing on a small quantity the Cotton Seed of cotton seed hulls simultaneously; The Cotton Seed that contains on a small quantity cotton seed hulls that separation is obtained turns back to and in steps d, again carries out selection by winnowing and/or screening.
The present embodiment is except having the advantage of embodiment 1, and processing arrangement is more reasonable, owing to having increased step I, has further reduced the quantity of the Cotton Seed of carrying secretly in the cotton seed hulls that step c separation obtains.
The method that the present invention provides, the material embryo obtaining is shaped, and is difficult for brokenly, crosses 30 mesh sieve fines content≤8%, has guaranteed that subsequent handling carries out smoothly, does not stop up; Due to the good penetrability of embryo sheet, extraction time shortened to 110～130 minutes by original 120～180 minutes; Said method, makes the control of cotton seed hulls content≤18% in Cotton Seed content≤1% in cotton seed hulls and Cotton Seed become simple, is easy to serialization industrial production; In the cottonseed protein product that subsequent handling obtains, Residual oil average content can be reduced to 1%～1.5% or lower, and liquid chromatography for measuring free gossypol content is less than 100ppm, is residually moltenly less than 0.05%; Increased benevolence shell separation circuit for the second time, a small amount of Cotton Seed of carrying secretly has been recycled, thereby reduced waste in original cotton seed hulls.
Cottonseed is during purchasing, and each manufacturer, in purchase process, differs to the control criterion of cottonseed quality, can make cottonseed oeverall quality produce larger difference.
Embodiment 1 needs to guarantee that cottonseed maturity is good, and seed should be evenly big or small; Down content remains on 2～4%, and water content is controlled at 9～13% and is advisable; Generally oneself purchasing, processing the producer that cottonseed is had ready conditions to different quality cottonseed pile up separately, can operational version 1.
But in fact, in manufacturer production process, cottonseed mostly is market and buys, concentrate and stack, the requirement that cottonseed seed size, moisture and down content are consistent cannot be guaranteed, while therefore taking into account the percentage of damage of cottonseed and the overall fines content of material embryo when peeling off, the fines content problem of material embryo should be paid the utmost attention to, can sacrifice the percentage of damage of cottonseed like this, the undersized cottonseed of part can leak stripping.Add and the cottonseed that leaks stripping must be isolated to reduce loss man-hour.Embodiment 2 provides related process method.
If when cottonseed water content is large, irregular containing suede, part Cotton Seed can be encased by boll hull, only depends on first separation, make in shell to be less than containing benevolence amount 1% more difficult, must, to again clearing up containing benevolence cotton seed hulls, isolate Cotton Seed.Therefore for cottonseed water content, be greater than 13%, irregular containing suede, but the more uniform cottonseed of seed size, can adopt the method for embodiment 3.The present embodiment also can adopt embodiment 2 method, by by boll hull, encased cotton benevolence return to step b, through decorticator, again process.
Claims (38)
1. for low temperature pretreatment, produce a production method for the cottonseed material embryo of dephenolization cottonseed protein, it is characterized in that, described method comprises the steps:
A. the cottonseed after stripping suede is cleared up to impurity elimination, make impurity content≤0.5%, the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. the processing of peeling off of the cottonseed after step a being processed; Obtain Cotton Seed and cotton seed hulls compound;
C. the peel off cotton seed hulls, the Cotton Seed compound that obtain of step b carried out to benevolence shell is separated for the first time; The cotton seed hulls that obtains containing the Cotton Seed of cotton seed hulls after separation and contain Cotton Seed; And Cotton Seed content≤1% in the cotton seed hulls that makes to obtain; Carry out subsequently steps d processing;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening carrys out separation again, and the cotton seed hulls in Cotton Seed is separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. by what obtain in steps d, containing the cotton seed hulls of Cotton Seed, return and in step c, again carry out separation;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%;
G. the Cotton Seed after step f being softened is rolled into embryo sheet, the thickness≤0.5mm of embryo sheet;
H. embryo sheet step g being obtained carries out modified, and the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Material embryo water content≤7% obtaining after modified, crosses 30 mesh sieves, fines content≤8%.
2. method claimed in claim 1, is characterized in that, the cleaning impurity elimination described in step a is the independent method that adopts selection by winnowing or adopt selection by winnowing and magnetic separation simultaneously.
3. method claimed in claim 1, is characterized in that, the shell of benevolence described in step c is separated into the method for using selection by winnowing and/or screening.
4. method claimed in claim 1, is characterized in that, is separated into the method for simultaneously using selection by winnowing and screening described in steps d.
5. method claimed in claim 1, is characterized in that, the Cotton Seed moisture after softening described in step f is 9～11%.
6. method claimed in claim 1, is characterized in that, the Cotton Seed moisture after softening described in step f is 10%.
7. method claimed in claim 1, is characterized in that, softens in softening kettle and carry out described in step f.
8. method claimed in claim 1, is characterized in that, the thickness of the sheet of embryo described in step g is 0.25～0.3mm.
9. method claimed in claim 1, is characterized in that, modified modified for drying described in step h.
10. method claimed in claim 1, is characterized in that, the material embryo water content obtaining after modified described in step h is 3～5%.
11. methods claimed in claim 1, is characterized in that, the cottonseed water content of shelling after suede described in step a is 9～13%.
12. methods claimed in claim 1, is characterized in that, the cottonseed down content of shelling after suede described in step a is 2～4%.
Method described in 13. claim 1 to 12 any one, is characterized in that, described method only comprises described a, b, c, d, e, f, g and h step.
14. 1 kinds of production methods of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, is characterized in that, described method comprises the steps:
A. the cottonseed after stripping suede is cleared up to impurity elimination, make impurity content≤0.5%, the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. the processing of peeling off of the cottonseed after step a being processed, obtains the compound of cotton seed hulls and Cotton Seed;
C. the peel off cotton seed hulls, the Cotton Seed compound that obtain of step b carried out to benevolence shell is separated for the first time; After separation, obtain the Cotton Seed containing cotton seed hulls, obtain containing Cotton Seed and the cotton seed hulls of the cottonseed of strip off not simultaneously;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening carrys out separation again, and the cotton seed hulls in Cotton Seed is separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. by what obtain in steps d, containing the cotton seed hulls of a small amount of Cotton Seed, return and in step c, again carry out separation;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%;
G. the Cotton Seed after softening in step f is rolled into embryo sheet, embryo sheet thickness≤0.5mm;
H. the embryo sheet obtaining in step g is carried out modifiedly, the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Material embryo water content≤7% obtaining after modified, crosses 30 mesh sieves, fines content≤8%;
I. to step c, separation obtains containing Cotton Seed and not the cotton seed hulls of the cottonseed of strip off carry out that benevolence shell is separated for the second time, cotton seed hulls is separated, and in the cotton seed hulls that makes to obtain containing benevolence amount≤1%; Obtain a small amount of Cotton Seed and the cottonseed of strip off not, a small amount of Cotton Seed that separation is obtained turns back to step b with the cottonseed of not strip off and again peels off separated simultaneously.
Method described in 15. claims 14, is characterized in that, the cleaning impurity elimination described in step a is to adopt separately selection by winnowing or the method for selection by winnowing and magnetic separation.
Method described in 16. claims 14, is characterized in that, the shell of benevolence described in step c is separated into the method for using screening and/or selection by winnowing.
Method described in 17. claims 14, is characterized in that, is separated into the method for simultaneously using selection by winnowing and screening described in steps d.
Method described in 18. claims 14, is characterized in that, the Cotton Seed moisture after softening described in step f is 9～11%.
Method described in 19. claims 14, is characterized in that, the Cotton Seed moisture after softening described in step f is 10%.
Method described in 20. claims 14, is characterized in that, softens in softening kettle and carry out described in step f.
Method described in 21. claims 14, is characterized in that, the sheet of embryo described in step g thickness is 0.25～0.3mm.
Method described in 22. claims 14, is characterized in that, modified modified for drying described in step h.
Method described in 23. claims 14, is characterized in that, the material embryo water content obtaining after modified described in step h is 3～5%.
Method described in 24. claims 14, is characterized in that, contains benevolence amount≤0.5% in step I in the cotton seed hulls obtaining.
Method described in 25. claim 14 to 24 any one, is characterized in that, only comprises described a, b, c, d, e, f, g, h and i step in described method.
26. 1 kinds of production methods of producing the cottonseed material embryo of dephenolization cottonseed protein for low temperature pretreatment, is characterized in that, described method comprises the steps:
A. the cottonseed after stripping suede is cleared up to impurity elimination, make impurity content≤0.5%, the cottonseed water content after described stripping suede is 7～16%, and down content is 2～6%;
B. the processing of peeling off of the cottonseed after step a being processed, obtains the compound of cotton seed hulls and Cotton Seed;
C. the peel off cotton seed hulls, the Cotton Seed compound that obtain of step b carried out to benevolence shell is separated for the first time; After separation, obtain the Cotton Seed containing cotton seed hulls, obtain the cotton seed hulls containing Cotton Seed simultaneously;
D. the Cotton Seed containing cotton seed hulls step c being obtained carries out selection by winnowing and/or screening is again separated, and the cotton seed hulls in Cotton Seed is separated, and cotton seed hulls content≤18% in the Cotton Seed that makes to obtain; Obtain the cotton seed hulls containing Cotton Seed simultaneously;
E. in steps d, obtain containing the cotton seed hulls of Cotton Seed, return and in step c, again carry out separation;
F. the Cotton Seed obtaining in steps d is softened to processing, the softening time is 20～30 minutes; Cotton Seed temperature≤80 ℃ when softening; The Cotton Seed moisture of controlling after softening is 8～12%;
G. the Cotton Seed after softening in step f is rolled into embryo sheet, embryo sheet thickness≤0.5mm;
H. embryo sheet step g being obtained carries out modified, and the modified time is 10～30 minutes, embryo sheet temperature≤80 ℃ when modified; Material embryo water content≤7% obtaining after modified, crosses 30 mesh sieves, fines content≤8%;
I. the cotton seed hulls containing Cotton Seed that separation obtains to step c carries out benevolence shell separation for the second time, cotton seed hulls is separated, and contain benevolence amount≤1% in the cotton seed hulls that makes to obtain; Obtain containing on a small quantity the Cotton Seed of cotton seed hulls simultaneously; The Cotton Seed that contains on a small quantity cotton seed hulls that separation is obtained turns back to and in steps d, again carries out selection by winnowing and/or screening.
Method described in 27. claims 26, is characterized in that, the cleaning impurity elimination described in step a is the independent method that adopts selection by winnowing or adopt selection by winnowing and magnetic separation simultaneously.
Method described in 28. claims 26, is characterized in that, the shell of benevolence described in step c is separated into the method for using screening and/or selection by winnowing.
Method described in 29. claims 26, is characterized in that, is separated into the method that simultaneously adopts selection by winnowing and screening described in steps d.
Method described in 30. claims 26, is characterized in that, the Cotton Seed moisture after softening described in step f is 9～11%.
Method described in 31. claims 26, is characterized in that, the Cotton Seed moisture after softening described in step f is 10%.
Method described in 32. claims 26, is characterized in that, softens in softening kettle and carry out described in step f.
Method described in 33. claims 26, is characterized in that, the sheet of embryo described in step g thickness is 0.25～0.3mm.
Method described in 34. claims 26, is characterized in that, modified modified for drying described in step h.
Method described in 35. claims 26, is characterized in that, the material embryo water content obtaining after modified described in step h is 3～5%.
Method described in 36. claims 26, is characterized in that, contains benevolence amount≤0.5% in step I in the cotton seed hulls obtaining.
Method described in 37. claim 26 to 36 any one, is characterized in that, only comprises described a, b, c, d, e, f, g, h and i step in described method.
38. according to the prepared cottonseed material embryo of the method for claim 1-37 any one.
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| CN102178030A (en) * | 2010-07-06 | 2011-09-14 | 新疆农业大学 | Economic and efficient method for removing gossypol from cotton by-products |
| CN102187940B (en) * | 2011-06-15 | 2012-10-31 | 晨光生物科技集团股份有限公司 | Method for improving cottonseed protein content and short fiber yield |
| CN102907569A (en) * | 2012-11-01 | 2013-02-06 | 新疆金鑫生物科技发展有限公司 | Processing method for feed nutritional cottonseed meal with low denatured protein and high lysine |
| CN103923741A (en) * | 2014-03-07 | 2014-07-16 | 郑州远洋油脂工程技术有限公司 | Process and equipment for removing gossypol from cottonseeds by dry method |
| CN104026346B (en) * | 2014-06-29 | 2016-07-13 | 段茂君 | The preparation method of a kind of full-cream cottonseed kernel protein and the Semen Gossypii sheller of employing |
| CN108354059A (en) * | 2017-12-29 | 2018-08-03 | 晨光生物科技集团喀什有限公司 | A kind of production method of cottonseed protein |
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| CN101029075A (en) * | 2007-04-02 | 2007-09-05 | 孙旭东 | Production of cottonseed protein stock |
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