CN107760212B - A kind of manufacturing of gelatin method reducing viscosity decline - Google Patents
A kind of manufacturing of gelatin method reducing viscosity decline Download PDFInfo
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- CN107760212B CN107760212B CN201710976285.6A CN201710976285A CN107760212B CN 107760212 B CN107760212 B CN 107760212B CN 201710976285 A CN201710976285 A CN 201710976285A CN 107760212 B CN107760212 B CN 107760212B
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- cladding
- gelatin
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- temperature
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09H—PREPARATION OF GLUE OR GELATINE
- C09H1/00—Pretreatment of collagen-containing raw materials for the manufacture of glue
- C09H1/04—Pretreatment of collagen-containing raw materials for the manufacture of glue of hides, hoofs, or leather scrap
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09H—PREPARATION OF GLUE OR GELATINE
- C09H3/00—Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
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- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention discloses a kind of manufacturing of gelatin methods reducing viscosity decline, it including rawhide pretreatment, pickling, neutralization, washes, propose glue, filtering, ion exchange, concentration, high-temperature sterilization, molding, drying and crushing, the pretreated specific steps of rawhide include：1. freezing cladding；2. after the cladding of freezing together is carried out physics cutting；3. cladding is placed in high temperature water body, kept the temperature；4. taking out cladding to be cooled to room temperature, and spray aqueous sodium hypochlorite solution；5. secondary freezing；6. taking out cladding to thaw to room temperature；7. cladding is placed in room temperature water body, and slowly heat up；8. pulling cladding out to be washed.Viscosity can be effectively reduced using the gelatin of the method production of the present invention and declines degree, to ensure gelatin quality.
Description
Technical field
It is especially a kind of using animal cladding as the manufacturing of gelatin method of raw material the present invention relates to a kind of manufacturing of gelatin method.
Background technology
Gelatin is the collagen that skin, bone, cartilage, ligament, sarolemma of animal etc. contain, and is added after purified and primary hydrolysis
Prepared by work high-molecular polypeptide high polymer.Gelatin finished product is in addition to a small amount of water and inorganic salts, and wherein protein content accounts for 82%
More than, it is fat-free, cholesterol is free of, and contain 18 kinds of amino acid, wherein 7 kinds are that human body institute is required.Gelatin is wide civilian
The general capsule applied to food additives and medical pill；Industrially gelatin is photograph film, Ⅹ ray film, aviation glue again
The indispensable raw material of piece and wood-based plate gluing, belt adhesive, rubber product, cotton and papermaking etc..
The process for making high-quality gelatin and collagen is exactly that stable collagenous fibres are destroyed by processing method appropriate
Intermolecular and intramolecular covalent cross-linking and non-covalent bond, release tropocollagen molecule, then make to stablize collagen spiral shell by heating
The hydrogen bond of rotation is broken to release gelatin.Currently, the technical process for being produced gelatin with animal cladding is cladding sorting, cut
It cuts, clean, pickling, neutralization, washing, carrying glue, filtering, ion exchange, concentration, high-temperature sterilization (steam), molding, dry and powder
It is broken, finally it is re-dubbed finished product.
High viscosity is an important physical index of high-quality gelatin, and the usually bright method of measurement gelatin viscosity is to do gelatin
Particle adds water that colloid progress viscosity test is made.Using the gelatin of common process production when doing viscosity test, gelatin gels exist
Storage will appear apparent viscosity and declines after a certain period of time, therefore viscosity declines one that degree also should be used as considering gelatin quality
Important indicator.In general, in this field, it is generally considered that and determines that the main reason for gelatin viscosity declines degree is in thin in gelatin
Bacterial content.Therefore, this field is when solving this technical problem, typically reinforces high-temperature sterilization link to improve bactericidal effect,
But the problem of gelatin viscosity declines in fact is not can be well solved.
Invention content
The object of the present invention is to provide a kind of manufacturing of gelatin methods reducing viscosity decline.This method produces bright
Glue can effectively reduce viscosity and decline degree, to ensure gelatin quality.
Technical scheme of the present invention：A kind of manufacturing of gelatin method reducing viscosity decline, including rawhide pretreatment, leaching
Acid is neutralized, is washed, proposing glue, filtering, ion exchange, concentration, high-temperature sterilization, molding, drying and crushing and (obtain semi-finished product, finished product
Need to be according to requiring to be compounded to obtain to a variety of semi-finished product), wherein rawhide preprocessing process specific steps include：
1. freezing cladding；
2. after the cladding of freezing together is carried out physics cutting；
3. cladding is placed in high temperature water body, kept the temperature；
4. taking out cladding to be cooled to room temperature, and spray aqueous sodium hypochlorite solution；
5. secondary freezing；
6. taking out cladding to thaw to room temperature；
7. cladding is placed in room temperature water body, and slowly heat up；
8. pulling cladding out to be washed.
In the above-mentioned manufacturing of gelatin method for reducing viscosity decline, the step 1. in, the temperature for freezing cladding is -10
DEG C to -15 DEG C, cooling time is for 24 hours to 72h.
It is above-mentioned reduce viscosity decline manufacturing of gelatin method in, the step 3. in, high temperature water temperature be 70 DEG C
To 80 DEG C, soaking time is 1.5h to 2h.
It is above-mentioned reduce viscosity decline manufacturing of gelatin method in, the step 4. in, the aqueous sodium hypochlorite solution
Middle sodium hypochlorite it is a concentration of in 800-2000ppm.
In the manufacturing of gelatin method above-mentioned for reducing viscosity decline, the step 5. in, the temperature of secondary freezing is -35
DEG C to -40 DEG C, cooling time is 40min to 60min.
It is above-mentioned reduce viscosity decline manufacturing of gelatin method in, the step 7. in, heating rate be 5 DEG C/min extremely
7 DEG C/min, finally it is warming up to 70 DEG C to 80 DEG C.
Compared with prior art, the inventors found that since the bacterium that adheres on cladding is in the process of manufacturing of gelatin
In remain vital movement state, will produce more derived material (such as enzyme), these derivatives during vital movement
Matter small volume, traditional high-temperature steam sterilization (similar with sterilization of milk technique) can kill bacterium really, but can not make
These derived material loss of activity, once (dissolving etc.) can be had an impact to gelatin into suitable temperature, damp condition,
It is serious to make gelatin gels viscosity in storage decline.Therefore, applicant coordinates secondary heating using secondary freezing, not only may be used
Just to kill a part of bacterium in early period, and the bacterium not being killed can be made when coping with the environmental change of this mutation
Into self-protection state, vital movement (or even suspend mode) can be slowed down within following one end time, therefore in subsequent gelatin
Derivative generation can be reduced in production process, and then the viscosity for reducing final gelatin gels declines, and has ensured the quality of gelatin.
Moreover, present invention utilizes gelatin in a cold or frozen state, the characteristics of sodium hypochlorite is not easily accessed cladding internal layer, in secondary freezing
It is preceding to reinforce bactericidal effect with the liquor natrii hypochloritis that is of little use using this field of mode of spray, and can be to avoid hypochlorous acid
Sodium solution enters cladding deep layer and corrodes to gelatin, influences gelatin yield and quality.
In addition, the present inventor grinds the temperature and time parameter of secondary freezing and secondary heating repeatedly
Study carefully, test and summarize, the decline of gelatin viscosity can be reduced to greatest extent by having obtained.
It tests by contrast, using gelatin (sample A) viscosity and the method using the present invention production of produced in conventional processes
The comparison of gelatin (sample B) viscosity is as follows:
1. colloid configures：Standard preparation method is configured to the glue that mass fraction is 6.67%.
2. experiment condition：37 DEG C, Engler viscometer test,
| Initial viscosity | Viscosity after 17 hours | |
| Sample A (10 groups) | 5.6 (average values) | 3.5 (average values) |
| Sample B (10 groups) | 5.4 (average values) | 5.3 (average values) |
Specific implementation mode
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
Embodiment.A kind of manufacturing of gelatin method reducing viscosity decline, including rawhide pretreatment, pickling, neutralization, water
It washes, put forward glue, filtering, ion exchange, concentration, high-temperature sterilization, molding, drying and crushing, the pretreated specific steps of rawhide
Including：
1. freezing cladding (pigskin), the temperature for freezing cladding is -10 DEG C to -15 DEG C (preferably -15 DEG C), and cooling time is
For 24 hours to 72h (preferably 36h)；
2. (cutting into 3X3cm fritters) after the cladding of freezing together is carried out physics cutting；
3. cladding to be placed in the high temperature water body of 70 DEG C to 80 DEG C (preferential 80 DEG C), heat preservation 1.5h to 2h is carried out (preferably
1.5h)；
4. taking out cladding to be cooled to room temperature, and spray 800-2000ppm aqueous sodium hypochlorite solutions；
5. secondary freezing is carried out under -35 DEG C to -40 DEG C (preferably -40 DEG C), cooling time be 40min to 60min (preferably
50min)。
6. taking out cladding to thaw to room temperature；
7. cladding is placed in room temperature water body, and slowly heat up, heating rate is 5 DEG C/min to 7 DEG C/min, is finally warming up to
70 DEG C to 80 DEG C；
8. pulling cladding out to be washed.
Claims (6)
1. the manufacturing of gelatin method of viscosity decline is reduced a kind of, including rawhide pretreatment, pickling, neutralization, washes, put forward glue, mistake
Filter, ion exchange, concentration, high-temperature sterilization, molding, drying and crushing, which is characterized in that the pretreated specific steps of rawhide
Including：
1. freezing cladding；
2. after the cladding of freezing together is carried out physics cutting；
3. cladding is placed in high temperature water body, kept the temperature；
4. taking out cladding to be cooled to room temperature, and spray aqueous sodium hypochlorite solution；
5. secondary freezing；
6. taking out cladding to thaw to room temperature；
7. cladding is placed in room temperature water body, and slowly heat up；
8. pulling cladding out to be washed.
2. the manufacturing of gelatin method according to claim 1 for reducing viscosity decline, it is characterised in that：The step is 1.
In, the temperature for freezing cladding is -10 DEG C to -15 DEG C, and cooling time is for 24 hours to 72h.
3. the manufacturing of gelatin method according to claim 1 for reducing viscosity decline, it is characterised in that：The step is 3.
In, high temperature water temperature is 70 DEG C to 80 DEG C, and soaking time is 1.5h to 2h.
4. the manufacturing of gelatin method according to claim 1 for reducing viscosity decline, it is characterised in that：The step is 4.
In, sodium hypochlorite is a concentration of in 800-2000ppm in the aqueous sodium hypochlorite solution.
5. the manufacturing of gelatin method according to claim 1 for reducing viscosity decline, it is characterised in that：The step is 5.
In, the temperature of secondary freezing is -35 DEG C to -40 DEG C, and cooling time is 40min to 60min.
6. the manufacturing of gelatin method according to claim 1 for reducing viscosity decline, it is characterised in that：The step is 7.
In, heating rate is 5 DEG C/min to 7 DEG C/min, is finally warming up to 70 DEG C to 80 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710976285.6A CN107760212B (en) | 2017-10-19 | 2017-10-19 | A kind of manufacturing of gelatin method reducing viscosity decline |
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| CN201710976285.6A CN107760212B (en) | 2017-10-19 | 2017-10-19 | A kind of manufacturing of gelatin method reducing viscosity decline |
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| Publication Number | Publication Date |
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| CN107760212A CN107760212A (en) | 2018-03-06 |
| CN107760212B true CN107760212B (en) | 2018-08-03 |
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| CN113896785B (en) * | 2021-09-14 | 2023-09-08 | 罗赛洛(温州)明胶有限公司 | Preparation method of anti-crosslinking gelatin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302552A (en) * | 1999-12-07 | 2001-07-11 | Ed·盖斯特里西父子化学工业股份公司 | Method of preparing collagen membrane from pigskin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2212870B1 (en) * | 2001-08-08 | 2005-10-01 | Consejo Superior De Investigaciones Cientificas | STABILIZATION FOR THE CONSERVATION AND STORAGE IN THE ENVIRONMENTAL TEMPERATURE OF SKIN AND CONNECTIVE FISH FABRIC, AND AFTER PRODUCTION OF COLLAGEN AND / OR GELATINE. |
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- 2017-10-19 CN CN201710976285.6A patent/CN107760212B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302552A (en) * | 1999-12-07 | 2001-07-11 | Ed·盖斯特里西父子化学工业股份公司 | Method of preparing collagen membrane from pigskin |
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