CN104621340B - Cold press produces dephenolization cottonseed protein method - Google Patents
Cold press produces dephenolization cottonseed protein method Download PDFInfo
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Abstract
The invention discloses a kind of method that cold press produces dephenolization cottonseed protein, comprise the following steps：1) cottonseed is cleared up and quenched：Cottonseed is gone after the removal of impurity, regulation moisture to 8%~12%；2) whole cottonseed cold press：Cottonseed after quenched is not shelled and whole seed squeezing is directly carried out with twin-screw squeezer, and hair cotton oil and cold pressed cotton seeds cake are obtained after filtering；Cotton oil must be refined after hair cotton oil is refined；3) cold pressed cotton seeds cake crushing and classification：Cottonseed cake was crushed into the mesh sieve of 80 mesh~150；4) it is classified cold pressed cotton seeds cake subcritical abstraction：Take the oversize and screenings of the mesh sieve of 80 mesh~150 to carry out subcritical abstraction respectively, and extract the dephenolization cottonseed protein that low denaturation is obtained after wherein remaining grease.Cottonseed of the present invention is without the direct whole grain cold press of skin breaking, and not only oil yield is high, and has simplified process, saved energy consumption, and gossypol content is low in obtained dephenolization cottonseed protein, and protein content is high, it is low to be denatured.
Description
Technical field
The invention belongs to grain and oil processing technique field, and in particular to a kind of method that cold press produces dephenolization cottonseed protein.
Background technology
Current cottonseed milling process has hot moulding and point of cold press.Because hot moulding technique has bound gossoypol content in cake
The high and high shortcoming of protein denaturation degree, its cotton dregs can only do rudimentary feed or fertilizer application.Cold pressing process is due to material temperature
Degree is relatively low, and the chance that free gossypol and protein combine to form bound gossoypol is relatively low, and its cotton dregs can further handle system
Standby dephenolization cottonseed protein is so as to improve its added value.
For example, Publication No. CN200610107087.8 Chinese patent application discloses a kind of dephenolization cotton protein
Production dephenolization cottonseed protein method is once leached, this method is that, using cottonseed as raw material, after Kernel-hull separation is handled, cold press goes out
Oil, oil-containing 15%-20% or so cold pressed cake uses methanol and n-hexane for leaching grease of solvent and gossypol, after leaching
Solid content obtains dephenolization cottonseed protein after extruding, drying, crushing；Publication No. CN201310041939.8 Chinese patent
Application discloses a kind of processing method of cold press pretreatment production dephenolization cottonseed protein, including cold press treatment process, infuser are carried
Oily process, leaching phenol removal process；Chinese science and technology achievement storehouse numbering hg07011303 achievements disclose cottonseed deep processing comprehensive utilization
Developmental research, using hulling machine Kernel-hull separation device, cottonseed is shelled, is then squeezed and liquefaction and carried out using cold pressing expeller
It is refined, grease is extracted using the different solvents method of fractional steps, then remove gossypol.But above-mentioned cold pressing oil method is low due to oil yield,
Cold pressed cake need to be extracted with Conventional solvents such as n-hexanes, so, although can extract Residual oil and part alcohol-soluble carbohydrate so as to
Protein content is improved, but temperature during precipitation is too high, causes protein denaturation degree high, greatly affected cotton cake dregs and enter
One step develops protein product.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method that cold press produces dephenolization cottonseed protein, solve existing
Method can not be after high-quality cotton oil be obtained, while obtaining the skill for the Cottonseed Meal that gossypol content is low and protein denaturation degree is low
Art problem.
To solve this technical problem, the technical solution adopted by the present invention comprises the following steps：
1) cottonseed is cleared up and quenched：Cottonseed is gone after the removal of impurity, regulation moisture to 8%~12%；
2) whole cottonseed cold press：Cottonseed after quenched does not shell and whole seed squeezing is directly carried out with twin-screw squeezer, passes through
Hair cotton oil and cold pressed cotton seeds cake are obtained after filter；Cotton oil must be refined after hair cotton oil is refined；
3) cold pressed cotton seeds cake crushing and classification：Cottonseed cake was crushed into the mesh sieve of 80 mesh~150；
4) it is classified cold pressed cotton seeds cake subcritical abstraction：The oversize and screenings of the mesh sieve of 80 mesh~150 was taken to enter respectively
Row subcritical abstraction, extracts and the dephenolization cottonseed protein of low denaturation is obtained after wherein remaining grease (oversize obtains low albumen and contained
The dephenolization cottonseed protein of amount, screenings obtains the dephenolization cottonseed protein of high protein content).
Further, the step 4) in classification cold pressed cotton seeds cake subcritical abstraction concrete technology condition be：Extraction temperature
25~50 DEG C, extraction times 3~6 times, each extraction time is 20~50min.
The beneficial effects of the present invention are：
1) the present inventor is through the discovery that studies for a long period of time, and cottonseed is not only simplified without the direct whole grain cold press of skin breaking
Process, energy consumption is saved, and oil yield is high, oil content is only that 6%~8% (existing cold pressing process is using first in cold pressed cake
Shell cold press again, and Residual oil is about 15%-20% in cake), it is thus also avoided that when boll hull is broken the rupture of gossypol color body of gland cause gossypol with
The haptoreactions such as protein generate bound gossoypol, it is difficult to enter in oil, ultimately cause total gossypol content in cotton dregs high.
2) due in cold pressed cake oil content and gossypol content it is low, by using subcritical abstraction process technology, not only energy consumption
It is relatively low, can also be effectively retained cottonseed protein bioactivity and nutritive value (existing cold pressing process using the cold press again that first shells,
Protein content is about 42%-45% in obtained dephenolization cottonseed protein, and NSI values are between 35%-40%；It is produced by the present invention
Protein content is 48%-51% in dephenolization cottonseed protein, and NSI values are between 35%-40%), low phenol content and albumen is made
(existing cold pressing process uses total cotton in the cold press again that first shells, obtained dephenolization cottonseed protein to the dephenolization cottonseed protein of the low denaturation of matter
Phenol content is 0.85%；0.70%) total gossypol content is not higher than in dephenolization cottonseed protein produced by the present invention.
Brief description of the drawings
Fig. 1 is process route chart of the invention.
Embodiment
Embodiment 1
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 8%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, 40 DEG C are warming up to, it is 1% that oiling, which weighs 2.0%, concentration,
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 100 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 25 DEG C of extraction temperature, extraction times 5 times, when extracting every time respectively
Between be 20min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 34%, NSI values 38.2%, total gossypol content 0.65%) and high protein content of protein content
Dephenolization cottonseed protein (protein content 55%, NSI values 38.5%, total gossypol content 0.59%).
Embodiment 2
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 8%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 120 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 50 DEG C of extraction temperature, extraction times 4 times, when extracting every time respectively
Between be 30min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 32.6%, NSI values 38.0%, total gossypol content 0.67%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 57%, NSI values 37.6%, total gossypol content 0.69%) of amount.
Embodiment 3
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 12%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 150 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 40 DEG C of extraction temperature, extraction times 6 times, when extracting every time respectively
Between be 20min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 31.4%, NSI values 37.3%, total gossypol content 0.70%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 58.2%, NSI values 38.6%, total gossypol content 0.69%) of amount.
Embodiment 4
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 10%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 80 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 30 DEG C of extraction temperature, extraction times 3 times, when extracting every time respectively
Between be 50min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 37.4%, NSI values 38.3%, total gossypol content 0.69%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 52.2%, NSI values 38.1%, total gossypol content 0.70%) of amount.
Embodiment 5
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 9%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 120 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 20 DEG C of extraction temperature, extraction times 3 times, when extracting every time respectively
Between be 40min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 33.4%, NSI values 37.4%, total gossypol content 0.62%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 55.3%, NSI values 38.5%, total gossypol content 0.67%) of amount.
Embodiment 6
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 10%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 150 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 50 DEG C of extraction temperature, extraction times 5 times, when extracting every time respectively
Between be 50min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 32.1%, NSI values 36.1%, total gossypol content 0.69%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 57.6%, NSI values 36.4%, total gossypol content 0.68%) of amount.
Embodiment 7
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 11%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 80 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 50 DEG C of extraction temperature, extraction times 6 times, when extracting every time respectively
Between be 50min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 37.4%, NSI values 37.3%, total gossypol content 0.69%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 54.6%, NSI values 37.0%, total gossypol content 0.70%) of amount.
Embodiment 8
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 8%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 150 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 50 DEG C of extraction temperature, extraction times 6 times, when extracting every time respectively
Between be 50min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 33.4%, NSI values 38.2%, total gossypol content 0.64%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 58.3%, NSI values 37.9%, total gossypol content 0.69%) of amount.
Embodiment 9
Cottonseed is through clearing up removal of impurities, and regulation moisture is directly entered twin-screw squeezer and carries out cold press to 12%, obtains cold after cold press
Squeeze hair cotton oil and cold pressed cotton seeds cake.500g cold press hair cotton oils are taken, acid value is surveyed, is warming up to 40 DEG C, oiling weighs 2.0%, and concentration is 1%
Saline solution, salt coolant-temperature gage is higher than 10 DEG C of oil temperature, quick stirring 30 minutes.Plus 24 Baume degrees alkali lye, excess alkali quantity 0.2%,
Added rapidly, then oil heats up by 1 DEG C/min under stirring condition in 10 minutes, until oil temperature is reached to 55 DEG C, be further continued for
Stirring 60 minutes, slows down and stands.8 hours are stood, edible vegetable oil is poured out, is cleaned 2-3 times with 100 DEG C of water.Washing oil is carried out at 105 DEG C
Vacuum dehydration, untill occurring in oil without obvious bubble.Plus 2% oil weight decolorising agent (atlapulgite+white carbon), 100
30min, suction filtration are stirred under DEG C vacuum condition.By the cottonseed oil after decolouring under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C
Carry out heating stirring 60min.High-quality finished press cotton oil is produced after cooling.
500g cold pressed cotton seeds cakes are taken, are crushed with pulverizer, are that 80 the polished standard screens are entered by the cottonseed cake specification after crushing
Row screening.Oversize and screenings is taken to carry out subcritical abstraction, 20 DEG C of extraction temperature, extraction times 3 times, when extracting every time respectively
Between be 20min (grease is refined after extraction).After extraction Cottonseed Meal under vacuum 50 DEG C of precipitations, dry 2h respectively it is low
The dephenolization cottonseed protein (protein content 36.9%, NSI values 37.0%, total gossypol content 0.67%) and high protein of protein content contain
The dephenolization cottonseed protein (protein content 53.5%, NSI values 37.5%, total gossypol content 0.64%) of amount.
Claims (2)
1. a kind of method that cold press produces dephenolization cottonseed protein, it is characterised in that：This method comprises the following steps：
1) cottonseed is cleared up and quenched：Cottonseed is gone after the removal of impurity, regulation moisture to 8%~12%；
2) whole cottonseed cold press：Cottonseed after quenched does not shell and whole seed squeezing is directly carried out with twin-screw squeezer, after filtering
Obtain hair cotton oil and cold pressed cotton seeds cake；Cotton oil must be refined after hair cotton oil is refined；
Wherein refinement step is followed successively by：
21) hair cotton oil acid value is surveyed, 40 DEG C are warming up to, oil is added and weighs the saline solution that 2.0%, concentration is 1%, salt coolant-temperature gage will height
In 10 DEG C of oil temperature, quick stirring 30 minutes；
22) 24 Baume degrees alkali lye are added, excess alkali quantity 0.2% was added rapidly in 10 minutes under stirring condition, then by 1 DEG C/min
By oil heating, until oil temperature reaches 55 DEG C, stirring 60 minutes is further continued for, slows down and stands；
23) after standing 8 hours, edible vegetable oil is poured out, is cleaned 2~3 times with 100 DEG C of water, vacuum dehydration is then carried out at 105 DEG C, directly
Untill occurring into oil without obvious bubble；
24) atlapulgite and the white carbon for oil weight of Jia 2% stir 30min, suction filtration as decolorising agent under 100 DEG C of vacuum conditions；
25) cottonseed oil after decolouring is subjected to heating stirring 60min under conditions of vacuum, logical nitrogen, oil temperature is 240 DEG C；It is cold
But high-quality finished press cotton oil is produced afterwards；
3) cold pressed cotton seeds cake crushing and classification：Cottonseed cake was crushed into the mesh sieve of 80 mesh~150；
4) it is classified cold pressed cotton seeds cake subcritical abstraction：The oversize and screenings of the mesh sieve of 80 mesh~150 was taken to carry out Asia respectively
Critical extraction, extracts the dephenolization cottonseed protein that low denaturation is obtained after wherein remaining grease.
2. the method that cold press produces dephenolization cottonseed protein according to claim 1, it is characterised in that：
The step 4) in classification cold pressed cotton seeds cake subcritical abstraction concrete technology condition be：25~50 DEG C of extraction temperature, extraction
Number of times 3~6 times, each extraction time is 20~50min.
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| CN108611189B (en) * | 2016-12-09 | 2023-02-21 | 丰益(上海)生物技术研发中心有限公司 | Refining process for controlling bisphenol A and alkylphenol in grease |
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| CN101880596A (en) * | 2010-07-13 | 2010-11-10 | 中国农业科学院油料作物研究所 | Method for preparing oil at low temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101880596A (en) * | 2010-07-13 | 2010-11-10 | 中国农业科学院油料作物研究所 | Method for preparing oil at low temperature |
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| 亚临界流体萃取胡麻籽低温压榨饼中油脂;万楚筠等;《农业工业学报》;20141108;第30卷(第21期);第324-328页 * |
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