CN104472849A - Preparation method of edible cow leather gelatin - Google Patents
Preparation method of edible cow leather gelatin Download PDFInfo
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- CN104472849A CN104472849A CN201410580629.8A CN201410580629A CN104472849A CN 104472849 A CN104472849 A CN 104472849A CN 201410580629 A CN201410580629 A CN 201410580629A CN 104472849 A CN104472849 A CN 104472849A
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Abstract
The invention relates to a preparation method of gelatin and especially relates to a preparation method of edible cow leather gelatin. The preparation method comprises the following steps of 1, diluting boiled cow leather gelatin liquid to obtain a cow leather gelatin diluents with a mass concentration of 4-6% and carrying out filtration, 2, treating the filtrate by ion exchange resin, 3, carrying out evaporation concentration on the penetrating fluid by an evaporator to obtain a concentrate with a mass concentration of 30-35%, 4, carrying out disinfection on the nanofiltred concentrate obtained by the step 3, carrying out quick-freezing to obtain ice, and shaving the ice to obtain roll films with thickness of 0.2-1.5mm, 5, drying the roll films obtained by the step 4 at a temperature of 50-60 DEG C for water content reduction until a mass concentration is in a range of 10-12%, and 6, carrying out crushing, mixing, sieving and packaging. The preparation method has the characteristics uniform granularity and fast drying rate.
Description
Technical field
The present invention relates to the preparation method of gelatin, particularly a kind of preparation method of stock cattle skin gelatin.
Background technology
The application of gelatin is very extensive, the large kind of edible gelatin, pharmaceutical glue, photosensitive gelatin and industrial gelatine four can be divided into by purposes, wherein edible gelatin (Gelatin) is the hydrolysate of collagen, a kind of fat free high protein, and not containing cholesterol, be a kind of food thickening agent of native trophism.
The preparation method of traditional gelatin, be gelatin thin liquid first filtered, concentrate, freezing, section final drying, as " friend got rich " the 3rd phase 22-22 page in 1997, the document describe first congeal, dry after flaking.Due to the drying of sheet gelatin, contact area is limited, and there is certain temperature difference due to each orientation of drying equipment, causes rate of drying slow and uneven, causes the granularity after pulverizing also uneven.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of epigranular and the preparation method of the fast stock cattle skin gelatin of rate of drying.
Technical problem solved by the invention is achieved by the following technical solutions:
A preparation method for stock cattle skin gelatin, is characterized in that comprising the following steps:
1) the cattle hide gelatin liquid boiled is diluted to the cattle hide gelatin thin liquid that mass concentration is 4 ~ 6%, filters;
2) filtrate is passed through ion exchange resin;
3) permeate is concentrated into through evaporator evaporation the concentrate that mass concentration is 30 ~ 35%;
4) by after the sterilizing of step 3) gained nanofiltration concentrate, quick-frozen becomes ice-like, digs into the roll film that thickness is 0.2 ~ 1.5mm;
5) drying steps 4 under temperature 50 ~ 60 DEG C of conditions) gained roll film, it is 10 ~ 12%, 6 that moisture is down to mass concentration) pulverize, mix, sieve, pack.
Preferably, adopt diatomite or cottonseed cake or active carbon as filter medium in described filtration.
Preferably, described ion exchange resin is the columns in series of anion and cationic ion-exchange resin.
Preferably, described sterilising temp is 130-140 DEG C.
Preferably, described evaporimeter used is triple effect evaporator.
Preferably, described drying is that fourdrinier wire is dry.
Preferably, described temperature is 50 ~ 55 DEG C.
Advantageous Effects of the present invention:
1, cattle hide gelatin thin liquid of the present invention is first through filtering, filtering macromolecular particle, then crosses through ion exchange resin medium grain impurity such as filtering salinity, metal ion, acid ion, chromogen, then concentrates, concentrate sterilizing after evaporimeter concentrates, snap frozen, ice-like gelatin after freezing is dug into thin roll film, then vacuum drying is carried out, in dry run, because thin roll film is large with the surface area of hot air impingement, and the inside and outside of roll film all contacts hot gas, each position of thin roll film is all in hot gas environments, and, arbitrarily stack in hothouse, space is had between roll film, hot gas is made to follow roll film fully to contact, thus make the moisture evaporation on roll film surface fast, rate of drying is fast, can decline to some extent because gelatin freezes power in long-time hot environment, drying time of the present invention is short, so products obtained therefrom of the present invention freezes Li Gao and uniform particles after crushed.
2, dry with Fourdrinier type drying machine, be placed in by roll film on guipure, because hot-air in Fourdrinier type drying machine can along with travelling forward of guipure and blowing of blower fan, form fluctuation up and down and stable thermal current, by the drive of air-flow, roll film rate of drying is faster.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be further described, therefore do not limit the present invention among described scope of embodiments.
001 × 7 (732) the type styrene storng-acid cation exchange resin that following examples institute spent ion exchange resin provides for Lai Te Rider Genie et Environnement and (201*7) 717 columns in series of type styrene type strong basic anion-exchange resin; Milipore filter concentrator model: HC-D-73, is provided by Chengdu and sincere Filter Co., Ltd; Fourdrinier type drying machine, Changzhou sincere Yao Hua drying equipment Co., Ltd provides.
Embodiment 1
1) the cattle hide gelatin liquid boiled is diluted to the cattle hide gelatin thin liquid that mass concentration is 4%, filters;
2) filtrate is passed through ion exchange resin;
3) be the concentrate of 30% by permeate through triple effect evaporator evaporation and concentration to mass concentration;
4) by step 3) gained nanofiltration concentrate after 130 DEG C of sterilizings, quick-frozen becomes ice-like, digs into the roll film that thickness is 0.2mm;
5) under temperature 50 C condition, Fourdrinier type drying machine drying steps 2 is passed through) gained roll film, it is 10% that moisture is down to mass concentration;
6) pulverize, mix, sieve, pack.
Embodiment 2
1) the cattle hide gelatin liquid boiled is diluted to the cattle hide gelatin thin liquid that mass concentration is 5%, filters;
2) filtrate is passed through ion exchange resin;
3) be the concentrate of 32% by permeate through triple effect evaporator evaporation and concentration to mass concentration;
4) by step 3) gained nanofiltration concentrate after 138 DEG C of sterilizings, quick-frozen becomes ice-like, digs into the roll film that thickness is 1.5mm;
5) under temperature 60 C condition, Fourdrinier type drying machine drying steps 2 is passed through) gained roll film, it is 12% that moisture is down to mass concentration;
6) pulverize, mix, sieve, pack.
Embodiment 3
1) the cattle hide gelatin liquid boiled is diluted to the cattle hide gelatin thin liquid that mass concentration is 6%, filters;
2) filtrate is passed through ion exchange resin;
3) be the concentrate of 35% by permeate through triple effect evaporator evaporation and concentration to mass concentration;
4) by step 3) gained nanofiltration concentrate after 140 DEG C of sterilizings, quick-frozen becomes ice-like, digs into the roll film that thickness is 0.8mm;
5) under temperature 55 DEG C of conditions, Fourdrinier type drying machine drying steps 2 is passed through) gained roll film, it is 11% that moisture is down to mass concentration;
6) pulverize, mix, sieve, pack.
Comparative examples 1-3
All be with the difference of embodiment 1-3, freezing rear gelatin is thinly sliced.
Size distribution situation is surveyed with dry sieve method:
1, equipment and instrument prepares
Need during test to prepare: standard screen a set of (6,8,10,12 order), vibrating scalper one, counter balance one frame, enamel tray two, baking oven.
2, concrete operation step
1) sample preparation: use conical quartering curtailed sampling, accurately take 100 grams.
2) bushing screen is sequentially folded from large to small by aperture, and loads onto the sieve end, is arranged on vibrating scalper, the sample weighed up is poured into the superiors' sieve 6 order, add screen cover.
3) start vibratory sieve, vibrate 20 minutes, then successively every layer of sieve is taken off, with hand screening, if 1 minute gained undersize material is less than 1% of on-the-sieve material, then thinks and reach screening terminal, otherwise hand will be continued be sieved to terminal.
4) carefully take out sample, to weigh respectively on each sieve and sample mass in chassis.
Following data are the granularity Detection result of embodiment and comparative examples products obtained therefrom
From above result, embodiment 1 ~ 3 gained cattle hide gelatin mainly concentrates on 10 mesh sieves, and that is the granularity of cattle hide gelatin is that 8 ~ 10 objects account for more than 98% of quality, illustrates that size distribution is very even.
Claims (7)
1. a preparation method for stock cattle skin gelatin, is characterized in that comprising the following steps:
1) the cattle hide gelatin liquid boiled is diluted to the cattle hide gelatin thin liquid that mass concentration is 4 ~ 6%, filters;
2) filtrate is passed through ion exchange resin;
3) permeate is concentrated into through evaporator evaporation the concentrate that mass concentration is 30 ~ 35%;
4) by after the sterilizing of step 3) gained nanofiltration concentrate, quick-frozen becomes ice-like, digs into the roll film that thickness is 0.2 ~ 1.5mm;
5) drying steps 4 under temperature 50 ~ 60 DEG C of conditions) gained roll film, it is 10 ~ 12% that moisture is down to mass concentration;
6) pulverize, mix, sieve, pack.
2. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: adopt diatomite, cottonseed cake or active carbon as filter medium in described filtration.
3. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: described ion exchange resin is the columns in series of anion and cationic ion-exchange resin.
4. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: described sterilising temp is 130-140 DEG C.
5. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: described evaporimeter used is triple effect evaporator.
6. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: described drying is that fourdrinier wire is dry.
7. the preparation method of stock cattle skin gelatin according to claim 1, is characterized in that: described temperature is 50 ~ 55 DEG C.
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| CN201410580629.8A CN104472849A (en) | 2014-10-27 | 2014-10-27 | Preparation method of edible cow leather gelatin |
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| CN201410580629.8A CN104472849A (en) | 2014-10-27 | 2014-10-27 | Preparation method of edible cow leather gelatin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108185403A (en) * | 2017-12-27 | 2018-06-22 | 成都经典明胶有限公司 | A kind of edible gelatin production technology |
| CN109627324A (en) * | 2018-12-29 | 2019-04-16 | 山东泰邦生物制品有限公司 | A kind of low electronegativity gelatin and its preparation method and application |
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| CN1215566A (en) * | 1998-08-12 | 1999-05-05 | 黄波明 | Production method of instant Chinese yam |
| CN1548493A (en) * | 2003-05-09 | 2004-11-24 | 上海双凤骨明胶有限公司 | Method of high purifying gelatine |
| CN102181233A (en) * | 2011-03-15 | 2011-09-14 | 罗赛洛(温州)明胶有限公司 | Technology for producing leather gelatin with high freezing force and high viscosity by alkali-alkali-acid ternary method |
| CN102181234A (en) * | 2011-03-16 | 2011-09-14 | 罗赛洛(温州)明胶有限公司 | Process for producing high-viscosity cowhide alkaline gelatin by batch and alkaline (BATALK) method |
| CN103421432A (en) * | 2012-05-22 | 2013-12-04 | 北京化工大学 | Gelatin and preparation method thereof |
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2014
- 2014-10-27 CN CN201410580629.8A patent/CN104472849A/en active Pending
Patent Citations (5)
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| CN1215566A (en) * | 1998-08-12 | 1999-05-05 | 黄波明 | Production method of instant Chinese yam |
| CN1548493A (en) * | 2003-05-09 | 2004-11-24 | 上海双凤骨明胶有限公司 | Method of high purifying gelatine |
| CN102181233A (en) * | 2011-03-15 | 2011-09-14 | 罗赛洛(温州)明胶有限公司 | Technology for producing leather gelatin with high freezing force and high viscosity by alkali-alkali-acid ternary method |
| CN102181234A (en) * | 2011-03-16 | 2011-09-14 | 罗赛洛(温州)明胶有限公司 | Process for producing high-viscosity cowhide alkaline gelatin by batch and alkaline (BATALK) method |
| CN103421432A (en) * | 2012-05-22 | 2013-12-04 | 北京化工大学 | Gelatin and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108185403A (en) * | 2017-12-27 | 2018-06-22 | 成都经典明胶有限公司 | A kind of edible gelatin production technology |
| CN109627324A (en) * | 2018-12-29 | 2019-04-16 | 山东泰邦生物制品有限公司 | A kind of low electronegativity gelatin and its preparation method and application |
| CN109627324B (en) * | 2018-12-29 | 2022-03-25 | 山东泰邦生物制品有限公司 | Low electronegativity gelatin and preparation method and application thereof |
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