CN1073704A

CN1073704A - Preparation process of gelatin by use of hair side skin multicomponent method

Info

Publication number: CN1073704A
Application number: CN 91111762
Authority: CN
Inventors: 张斌; 曾国爱; 张辉; 何衍庆; 夏志远; 廖自基
Original assignee: SHUANGLONG GELATIN PLANT KUNMING CITY
Current assignee: SHUANGLONG GELATIN PLANT KUNMING CITY
Priority date: 1991-12-27
Filing date: 1991-12-27
Publication date: 1993-06-30
Anticipated expiration: 2006-12-27
Also published as: CN1031141C

Abstract

A kind of preparation process of gelatin by use of hair side skin multicomponent method is handled through the polyacid base liming, adds the acid neutralization then, proposes glue, oven dry at low temperatures, the viscosity of gelatin product is frozen power and good glue rate has breakthrough, viscosity 〉=20 ° E, freeze power＞250 grams, good glue rate＞90%, product appreciation rate height.

Description

Preparation process of gelatin by use of hair side skin multicomponent method

The present invention relates to utilize burr skin tankage to produce gelatin in the processing of process hides, meat product, especially produce the high-quality gelatin technology that high viscosity, height are frozen power.

Produce the gelatin material abroad and mostly be animal skeleton, poultry feather etc., do not find the example that utilizes the burr skin, the method of domestic burr leather gelatin mainly contains lime method, lime soda processes, acid system etc., the lime treatment time is longer, caustic soda is handled then influences the product transparency, the gelatin that these methods are produced, high viscosity are all at 14 ° below the E, about average 10 ° of E.Get high quality gelatin (20～25 ° of E) with the burr leather and be still a difficult problem so far.

The purpose of this invention is to provide a kind of polyacid base processing burr leather and get high-quality gelatin technology.

Technology of the present invention is the characteristics according to cortex construction and collegen filament, design a kind of plural legal system adhesive process, its main points are to guarantee that alkaloids evenly infiltrates to the intracutaneous water-filling, under alkaline condition, add reductive agent and remove destratum corneum and keratinocyte, cortex is expanded, remove interfibrillar substance with weak lye again, make fiber loose, then adopt polyacid base that cortex is expanded deeply, add acid and neutralize behind the certain value, put forward glue and drying at low temperatures.

The gelatin product of this explained hereafter meets national standard and the superfine gelatin standard of three glue industries, and following index has breakthrough:

39.7 ° of E viscosity degradation 0 of viscosity freeze power＞250 grams

Good glue rate＞90% total plate count＜100/gram

Processing step is as follows:

1. the burr skin is cut into the 3-12cm bulk, drops into the waterpower degreasing machine, adds water at 1: 1 by the weight that feeds intake, and degreasing was desalted after washing 3-5 hour, recovers the fresh hide state behind the cladding water-filling, and grease is reclaimed in draining.

2. cladding is dropped into treating pond and add 0.5～2.0% Sodium Sulphide (optimum value 1.5%) at 1: 1 by the weight that feeds intake, handled 6-12 hour, depilation, removal epidermis cutin fully expand cortex.

3. cladding is moved into Calcified pond and handle, add the NaOH liquid that contains 0.5～2.0% lime (optimum value 1.2%) and 0.1% at 1: 1, handle 5-15 day, remove interfibrillar substance, reach cortex and expand deeply by cladding weight.

4. washing is moved back alkali to cortex PH6.5-7.5, best PH7.0.

5. cladding moves into sour pond and handles, and adds the best PH3 of PH1-4(at 1: 1 by cladding weight) dilute hydrochloric acid processing 2-6 hour, further remove noncollagen protein.

6. handle the back cladding and put into extacting glue pot, add 1: 1 clear water, 60-75 ℃ of scope cryogenic glue-extracting 4-5 time.

7. institute's glue of carrying filters through three times, filters back suction concentrating pan, with 70-80 ℃ of cryoconcentration, makes the glue ratio 45-55Be that weighs.

8. concentrate the back glue and drip gum forming, section obtains finished product in oven dry below 70 ℃, pulverizes packing more in case of necessity.

Embodiment

1. 1 25 tons of claddings are cut into the 3-12cm bulk set by step, the degreasing post-flush is 3 hours in degreasing machine, and degreasing water and wash-down water enter separate tank and reclaim grease.

2. 2 add 2.5 tons and contain 1.5% Sodium Sulphide and handled 8 hours set by step.

3. 3 add 2.5 tons and contained 1.5% lime and 0.1%NaOH solution-treated 9 set by step.

4. alkali is moved back in 4 washings set by step, is washed till cladding PH7.0.

5. 5 add 2.5 tons of water and add hydrochloric acid and transfer to PH8 set by step, handled 3 hours, be washed to PH7.0.

6. 6,7,8 make gelatin set by step.

Criticize the examination detected result

Produce the quality product detected result in batches

First batch of production four months dropped into 1453 tons of burr claddings, produces 254 tons in gelatin altogether, product percent of pass 100%, the ratio of first-grade products 96.5%, quality percentage 92.4%.Because the every increase of viscosity (° E) once, product price can improve 500 yuan/ton, thereby obtains 3,410,000 yuan of the output values, 1,230,000 yuan of newly-increased taxes and profits.

Claims

1, a kind of preparation process of gelatin by use of hair side skin multicomponent method is characterized in that block burr cladding added the water washing degreasing 3～5 hours by the weight that feeds intake at 1: 1 in degreasing machine; Place the pond to carry out polyacid base the burr cladding and handle, press cladding weight and add 0.5～2.0% Sodium Sulphide processing 6～12 hours at 1: 1, precipitation epidermis cutin fully expands cladding; Then cladding is moved in the Calcified pond, contain 0.5～0.2% lime and 0.1%NaOH solution at 1: 1 by cladding weight, normal temperature was handled 5～15 days, removed interfibrillar substance, and cladding is expanded deeply; Wash with water subsequently and move back alkali, be washed till cladding PH6.5～7.5; Cladding moves into acid bath, adds PH1-4 and dilute hydrochloric acid processing at 1: 1 2～6 hours by cladding weight, further removes collagen protein; Cladding is moved in the extacting glue pot, adds 1: 1 water, carry glue at low temperatures by cladding weight, glue after filtration, be concentrated into glue proportion 45-55B

, the glue after concentrating is through dripping gum forming, and the section oven dry can obtain packaging final prod after pulverizing again.

2, technology according to claim 1, the top condition that its polyacid base is handled for to add 1.5% Sodium Sulphide by cladding weight at 1: 1, and 1.2% lime is washed and moved back alkali PH7.0.

3, technology according to claim 1, its cryogenic glue-extracting temperature is 70-80 ℃ of a 60-75 ℃ of cryoconcentration temperature, bake out temperature is lower than 70 ℃.