CN106008691A - Method for preparing high-quality hydrochloric-acid casein from treated yak-milk ghee residues - Google Patents
Method for preparing high-quality hydrochloric-acid casein from treated yak-milk ghee residues Download PDFInfo
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- CN106008691A CN106008691A CN201610311889.4A CN201610311889A CN106008691A CN 106008691 A CN106008691 A CN 106008691A CN 201610311889 A CN201610311889 A CN 201610311889A CN 106008691 A CN106008691 A CN 106008691A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
- C07K14/4701—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals not used
- C07K14/4732—Casein
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Abstract
The invention discloses a method for preparing high-quality hydrochloric-acid casein from treated yak-milk ghee residues. The method aims at solving the technical problems that in the current casein acid-method production process, raw treated ghee residues are difficult to dissolve, and casein is poor in color and luster. The method includes the following steps that a treated-ghee-residue solution of 5.0% to 8.0% is prepared and heated to be at 40 DEG C to 50 DEG C in a water bath, and pH is adjusted to be 7.5 to 9.0; dissolving is assisted through a high-speed shearing machine, then the product is centrifuged, fat and impurities are filtered out, acid is added at the temperature of 38 DEG C to 40 DEG C to adjust the pH to be 4.1, precipitating and centrifuging are carried out, and whey is filtered out; the product is washed, dewatered and prilled, and the high-quality casein product can be prepared after drying. By means of the method, a traditional method for preparing casein is optimized, the dissolving temperature and the pH of raw treated ghee residues are reduced, and meanwhile dissolving time is shortened; the prepared casein product is white and odourless, the content of fat is smaller than or equal to 2.0%, the content of protein is larger than or equal to 92.0%, the content of ash is smaller than or equal to 2.0%, the requirements of related standards are met, the color and luster of casein are improved, and the quality of casein is improved.
Description
Technical field
The invention belongs to milk product technical field, be specifically related to a kind of yak milk QULA and prepare high-quality hydrochloric acid casein
Method.
Background technology
Casein is a kind of important food, industrial chemicals, can as nourishing additive agent or quality improver for food,
In the industries such as medicine, Nicotiana tabacum L., cosmetics, leather, light textile, papermaking, domestic and international market is relatively big, before development to the demand of casein
Scape is wide.
At present, the primary raw material of the industrial casein of domestic product is the QULA from pastoral area, Qinghai-Tibet Platean, and QULA is to herd
The people are by after yak milk defat, and natural fermentation makes coagulation of casein air-dry and make, more molten through alkali, centrifugal, acid is heavy, dehydration is done
Dry, the casein casein content obtained is higher than 80%.Compared with the casein abroad produced with fresh milk, this casein exists
Dissolve that viscosity is high, color and luster jaundice, matt, the defects such as abnormal flavour of becoming sour, the production cycle is longer so that it is use, price, to going out
The aspects such as mouth are very limited.Due to raw material QULA for a long time high temperature, high-alkali under the conditions of dissolve that to be susceptible to Mei Lade anti-
Should, cause casein color and luster to turn to be yellow, fat abjection is not clean, and long-term storage can cause tapinoma-odour；Therefore reduce solution temperature,
PH is that current casein produces the technical barrier being badly in need of solving with shortening dissolution time.
Summary of the invention
It is an object of the invention to provide a kind of method that yak milk QULA prepares high-quality hydrochloric acid casein, to solve QULA
The problem that casein color and luster is bad.
The method that the present invention a kind of yak milk QULA prepares high-quality hydrochloric acid casein, it includes preparing QULA feed liquid, water
Bath heating, and regulates pH value, by high-speed shearing machine hydrotropy, is then centrifuged, filtering and removing fat and impurity, and acid adding regulates
PH value, filters after being centrifuged and gets rid of milk surum；It is dehydrated granulation step after washing, specifically comprises the following steps that
(1) pulverize: raw material QULA is pulverized, sieves；
(2) adding adjusting PH with base: preparation mass concentration is 5.0%-8.0% feed liquid, heating in water bath, to 35-50 DEG C, drips NaOH solution, adjusts
Joint pH to 7.0-9.0；
(3) hydrotropy is sheared: in high-speed shearing machine, shear 6min-18min;Shear rate is 15000-22000 r/min；
(4) defat: be centrifuged, imurity-removal and fat；Filter after Li Xin, retain filtrate；
(5) Acid precipitation is ordered: by filtrate water-bath at 38-40 DEG C, in solution, be then slowly added dropwise HCl solution, when pH arrives
Stop acid adding during 3.8-4.1, staticly settle after continuing stirring；
(6) centrifugal: by above-mentioned solution centrifugal, filter after being centrifuged；
(7) pelletize: carry out pelletize by washing complete casein；
(8) it is dried: the casein that pelletize is good is put in electric drying oven with forced convection, is dried, obtains finished product.
Preferably, raw material QULA was pulverized 80 mesh sieves in pulverizing by step (1).Increase raw material QULA and alkali liquor contact surface
Long-pending, improve dissolved efficiency, and more than 80 mesh, raw material QULA bag group, caking phenomenon easily occur.
Preferably, in step (2) after preparation feed liquid, solution temperature is 35 DEG C-45 DEG C.Than conventional dry casein production technology temperature
Degree have dropped 15-20 DEG C, hence it is evident that reduces the impact that the Maillard reaction caused by high temperature makes casein color and luster deepen, improves
Casein color and luster.
Preferably, in step (2), dropping mass concentration is 5.1%NaOH solution, regulates pH to 7.5-8.5.Compare conventional cheese
Element production technology pH have dropped 1.5-2.5, hence it is evident that reduces Maillard reaction that is too high by pH and that cause and makes casein color and luster become
Deep impact, improves casein color and luster.
Preferably, using cutter to dissolve QULA in step (3), dissolution time is at 6-12min.Song is dissolved with cutter
Draw, change the stirring and dissolving mode in conventional dry casein production technology, and dissolution time only needs 6-12min, relative to tradition
Stirring and dissolving in technique, substantially reduces dissolution time, improves production efficiency, reduces energy consumption.
Preferably, step (4) defat is centrifuged under the conditions of 45 DEG C 10min, rotating speed 6600r/min, with 200 after being centrifuged
Mesh nylon net filter.
Preferably, step (5) is ordered in Acid precipitation, by filtrate water-bath 5min, is then slowly added dropwise 2mol/L in solution
HCl solution, is stirred continuously during dropping, stops acid adding when pH arrives 3.8-4.1, staticly settles 5min after continuing stirring 30s.
Preferably, during step (6) is centrifugal: step (5) is obtained solution centrifugal 10min, centrifugal rotational speed 4000r/min;From
200 mesh nylon net filter after the heart.
Preferably, in step (7) pelletize, granule size is 20 mesh.
Preferably, during step (8) is dried, temperature is 42 DEG C, 4 hours drying times.
Product casein yield of the present invention is higher than 78.0%, and the quality index of product is: white, odorless, and fat content≤
2.0%, protein content >=92.0%, content of ashes≤2.0%.
Casein production technology, by improving the dissolution process in casein production process, is optimized, carries by the present invention
High product element quality.Obtain has the beneficial effect that: dissolves raw material QULA the most in the short period of time, shortens the production cycle；2.
Reduce temperature and pH that QULA is dissolved, reduce production cost；3. improve production technology, improving product quality.
Detailed description of the invention
The following examples can further illustrate the present invention, but limits the present invention never in any form.
Embodiment 1
A kind of method that yak milk QULA prepares high-quality hydrochloric acid casein, step is as follows:
(1) pulverize: raw material QULA is pulverized, cross 80 mesh sieves.
(2) alkali is added: preparation mass concentration is 5.0% feed liquid, and heating in water bath to 35 DEG C, dropping mass concentration is 5.1%NaOH
Solution, regulates pH to 7. 0.
(3) hydrotropy is sheared: in high-speed shearing machine, shear 6min;Shear rate is 22000 r/min.
(4) defat: centrifugal 10min, rotating speed 6600r/min, imurity-removal and fat under the conditions of 45 DEG C；Use after Li Xin
200 mesh nylon net filters, retain filtrate.
(5) order Acid precipitation: by filtrate water-bath 5min at 38 DEG C, in solution, be then slowly added dropwise 2mol/L HCl dropping
Time be stirred continuously when pH arrives 4.1 and stop acid adding, staticly settle 5min after continuing stirring 30s.
(6) centrifugal: by above-mentioned solution centrifugal 10min, centrifugal rotational speed 4000r/min;200 mesh nylon net filters after centrifugal.
(7) pelletize: carrying out pelletize by washing complete casein, granularity is 20 mesh.
(8) being dried: put in electric drying oven with forced convection by the casein that pelletize is good, 42 DEG C are dried 4 hours.
The quality index of product is: white, odorless, fat content 1.5%, protein content 93.1%, content of ashes 1.8%.
Embodiment 2
A kind of method that yak milk QULA prepares high-quality hydrochloric acid casein, step is as follows:
(1) pulverize: raw material QULA is pulverized, cross 80 mesh sieves.
(2) alkali is added: preparation mass concentration is 8.0% feed liquid, and heating in water bath to 50 DEG C, dropping mass concentration is 5.1%NaOH
Solution, regulates pH to 8.5.
(3) hydrotropy is sheared: in high-speed shearing machine, shear 18min;Shear rate is 20000r/min.
(4) defat: centrifugal 10min, rotating speed 6600r/min, imurity-removal and fat under the conditions of 45-50 DEG C；After Li Xin
With 200 mesh nylon net filters, retain filtrate.
(5) order Acid precipitation: by filtrate water-bath 5min at 40 DEG C, in solution, be then slowly added dropwise 2mol/L HCl dropping
Time be stirred continuously when pH arrives 3.8 and stop acid adding, staticly settle 5min after continuing stirring 30s.
(6) centrifugal: by above-mentioned solution centrifugal 10min, centrifugal rotational speed 4000r/min;200 mesh nylon net filters after centrifugal.
(7) pelletize: carrying out pelletize by washing complete casein, granularity is 20 mesh.
(8) being dried: put in electric drying oven with forced convection by the casein that pelletize is good, 42 DEG C are dried 4 hours.
The quality index of product is: white, odorless, fat content 1.8%, protein content 92.6%, content of ashes 1.7%.
This example of embodiment 3(is the example that in the present invention, effect is best)
A kind of method that yak milk QULA prepares high-quality hydrochloric acid casein, step is as follows:
(1) pulverize: raw material QULA is pulverized, cross 80 mesh sieves.
(2) alkali is added: preparation mass concentration is 6.0% feed liquid, and heating in water bath to 40 DEG C, dropping mass concentration is 5.1%NaOH
Solution, regulates pH to 7.5.
(3) hydrotropy is sheared: in high-speed shearing machine, shear 9min;Shear rate is 18000 r/min.
(4) defat: centrifugal 10min, rotating speed 6600r/min, imurity-removal and fat under the conditions of 45-50 DEG C；After Li Xin
With 200 mesh nylon net filters, retain filtrate.
(5) order Acid precipitation: by filtrate water-bath 5min at 39 DEG C, in solution, be then slowly added dropwise 2mol/L HCl dropping
Time be stirred continuously when pH arrives 3.9 and stop acid adding, staticly settle 5min after continuing stirring 30s.
(6) centrifugal: by above-mentioned solution centrifugal 10min, centrifugal rotational speed 4000r/min;200 mesh nylon net filters after centrifugal.
(7) pelletize: carrying out pelletize by washing complete casein, granularity is 20 mesh.
(8) being dried: put in electric drying oven with forced convection by the casein that pelletize is good, 42 DEG C are dried 4 hours.
The quality index of product is: white, odorless, fat content 1.8%, protein content 93.4%, content of ashes 1.3%.
Embodiment 4
A kind of method that yak milk QULA prepares high-quality hydrochloric acid casein, step is as follows:
(1) pulverize: raw material QULA is pulverized, cross 80 mesh sieves.
(2) alkali is added: preparation mass concentration is 7.0% feed liquid, and heating in water bath to 45 DEG C, dropping mass concentration is 5.1%NaOH
Solution, regulates pH to 8.3.
(3) hydrotropy is sheared: in high-speed shearing machine, shear 12min;Shear rate is 15000 r/min.
(4) defat: centrifugal 10min, rotating speed 6600r/min, imurity-removal and fat under the conditions of 45-50 DEG C；After Li Xin
With 200 mesh nylon net filters, retain filtrate.
(5) order Acid precipitation: by filtrate water-bath 5min at 38 DEG C, in solution, be then slowly added dropwise 2mol/L HCl dropping
Time be stirred continuously when pH arrives 4.0 and stop acid adding, staticly settle 5min after continuing stirring 30s.
(6) centrifugal: by above-mentioned solution centrifugal 10min, centrifugal rotational speed 4000r/min;200 mesh nylon net filters after centrifugal.
(7) pelletize: carrying out pelletize by washing complete casein, granularity is 20 mesh.
(8) being dried: put in electric drying oven with forced convection by the casein that pelletize is good, 42 DEG C are dried 4 hours.
The quality index of product is: white, odorless, fat content 1.6%, protein content 93.6%, content of ashes 1.7%.
Claims (10)
1. the method that a yak milk QULA prepares high-quality hydrochloric acid casein, it is characterised in that: it includes preparing QULA material
Liquid, heating in water bath, and regulate pH value, by high-speed shearing machine hydrotropy, then it is centrifuged, filtering and removing fat and impurity, adds
Acid for adjusting pH value, filters after being centrifuged and gets rid of milk surum；It is dehydrated granulation step after washing, specifically comprises the following steps that
(1) pulverize: raw material QULA is pulverized, sieves；
(2) adding adjusting PH with base: preparation mass concentration is 5.0%-8.0% feed liquid, heating in water bath, to 35-50 DEG C, drips NaOH solution, adjusts
Joint pH to 7.0-9.0；
(3) hydrotropy is sheared: in high-speed shearing machine, shear 6min-18min;Shear rate is 15000-22000 r/min；
(4) defat: be centrifuged, imurity-removal and fat；Filter after Li Xin, retain filtrate；
(5) Acid precipitation is ordered: by filtrate water-bath at 38-40 DEG C, in solution, be then slowly added dropwise HCl solution, when pH arrives
Stop acid adding during 3.8-4.1, staticly settle after continuing stirring；
(6) centrifugal: by above-mentioned solution centrifugal, filter after being centrifuged；
(7) pelletize: carry out pelletize by washing complete casein；
(8) it is dried: the casein that pelletize is good is put in electric drying oven with forced convection, is dried, obtains finished product.
The method that a kind of yak milk QULA the most as claimed in claim 1 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly raw material QULA was pulverized 80 mesh sieves in pulverizing by (1).
The method that a kind of yak milk QULA the most as claimed in claim 1 or 2 prepares high-quality hydrochloric acid casein, its feature exists
In: in step (2) after preparation feed liquid, solution temperature is 35 DEG C-45 DEG C.
The method that a kind of yak milk QULA the most as claimed in claim 3 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly in (2), dropping mass concentration is 5.1%NaOH solution, regulates pH to 7.5-8.5.
The method that a kind of yak milk QULA the most as claimed in claim 4 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly using cutter to dissolve QULA in (3), dissolution time is at 6-12min.
The method that a kind of yak milk QULA the most as claimed in claim 5 prepares high-quality hydrochloric acid casein, it is characterised in that: step
(4) defat is centrifuged under the conditions of 45 DEG C 10min, rotating speed 6600r/min suddenly, with 200 mesh nylon net filters after being centrifuged.
The method that a kind of yak milk QULA the most as claimed in claim 6 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly (5) order in Acid precipitation, by filtrate water-bath 5min, are then slowly added dropwise 2mol/L HCl solution in solution, continuous during dropping
Stirring, stops acid adding when pH arrives 3.8-4.1, staticly settles 5min after continuing stirring 30s.
The method that a kind of yak milk QULA the most as claimed in claim 7 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly during (6) are centrifugal: step (5) is obtained solution centrifugal 10min, centrifugal rotational speed 4000r/min;200 mesh nylon wire mistakes after centrifugal
Filter.
The method that a kind of yak milk QULA the most as claimed in claim 8 prepares high-quality hydrochloric acid casein, it is characterised in that: step
Suddenly in (7) pelletize, granule size is 20 mesh.
The method that a kind of yak milk QULA the most as claimed in claim 9 prepares high-quality hydrochloric acid casein, it is characterised in that:
During step (8) is dried, temperature is 42 DEG C, 4 hours drying times.
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| CN201610311889.4A CN106008691A (en) | 2016-05-12 | 2016-05-12 | Method for preparing high-quality hydrochloric-acid casein from treated yak-milk ghee residues |
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| CN201610311889.4A CN106008691A (en) | 2016-05-12 | 2016-05-12 | Method for preparing high-quality hydrochloric-acid casein from treated yak-milk ghee residues |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906700A (en) * | 2016-05-23 | 2016-08-31 | 广东丰康生物科技有限公司 | Production technique and preparation method of organic suspended liquid |
| CN110037160A (en) * | 2019-04-04 | 2019-07-23 | 甘肃华羚生物技术研究中心 | A kind of food-grade Qula casein production method |
| CN110477188A (en) * | 2019-08-16 | 2019-11-22 | 武威高原生物制品有限责任公司 | A kind of production technology of powder casein |
| CN111011534A (en) * | 2019-12-25 | 2020-04-17 | 西南民族大学 | Method for improving color of yak Qula casein |
| CN113248589A (en) * | 2021-06-30 | 2021-08-13 | 中国海洋大学 | Preparation method of Qula casein |
| CN114916582A (en) * | 2022-05-11 | 2022-08-19 | 甘肃华羚乳品股份有限公司 | Yak milk protein peptide milk bar and preparation method thereof |
| CN115989846A (en) * | 2023-03-21 | 2023-04-21 | 中国农业大学 | Graded preparation method of trovain |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041845A (en) * | 2006-12-09 | 2007-09-26 | 甘肃华羚干酪素有限公司 | Method for producing chymosin dry casein by using Qula as raw material |
| CN104686781A (en) * | 2015-02-13 | 2015-06-10 | 任发政 | Method for degreasing casein by virtue of Qula acid precipitation |
-
2016
- 2016-05-12 CN CN201610311889.4A patent/CN106008691A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041845A (en) * | 2006-12-09 | 2007-09-26 | 甘肃华羚干酪素有限公司 | Method for producing chymosin dry casein by using Qula as raw material |
| CN104686781A (en) * | 2015-02-13 | 2015-06-10 | 任发政 | Method for degreasing casein by virtue of Qula acid precipitation |
Non-Patent Citations (1)
| Title |
|---|
| 于淼: ""曲拉精制干酪素褐变因素及工艺优化研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906700A (en) * | 2016-05-23 | 2016-08-31 | 广东丰康生物科技有限公司 | Production technique and preparation method of organic suspended liquid |
| CN110037160A (en) * | 2019-04-04 | 2019-07-23 | 甘肃华羚生物技术研究中心 | A kind of food-grade Qula casein production method |
| CN110477188A (en) * | 2019-08-16 | 2019-11-22 | 武威高原生物制品有限责任公司 | A kind of production technology of powder casein |
| CN111011534A (en) * | 2019-12-25 | 2020-04-17 | 西南民族大学 | Method for improving color of yak Qula casein |
| CN113248589A (en) * | 2021-06-30 | 2021-08-13 | 中国海洋大学 | Preparation method of Qula casein |
| CN114916582A (en) * | 2022-05-11 | 2022-08-19 | 甘肃华羚乳品股份有限公司 | Yak milk protein peptide milk bar and preparation method thereof |
| CN115989846A (en) * | 2023-03-21 | 2023-04-21 | 中国农业大学 | Graded preparation method of trovain |
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