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Method for preparing gelatin

A gelatin and gelatin boiling technology, which is applied in the field of gelatin preparation from animal rubber raw materials, can solve the problems of long process time, high temperature for extracting gelatin, and low yield of high-quality gelatin, and achieve the effects of simplified process, short gelatin cycle and low cost

Active Publication Date: 2012-02-29
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the whole, the above two gelatin preparation methods still have the following deficiencies: the extraction temperature of gelatin is relatively high, and the process time is relatively long, and the yield of high-quality gelatin is relatively low

Method used

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  • Method for preparing gelatin
  • Method for preparing gelatin
  • Method for preparing gelatin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Wash the tilapia skin raw material with clean water to remove impurities, soak it in saturated lime water, replace it with fresh saturated lime water every 24 hours, wash the skin raw material after 6 days of liming to obtain coarse collagen fibers;

[0038] 2. Mechanically crushing the crude collagen fibers obtained in step 1, adding 0.10 mmol of hydrogen peroxide to each gram of crude collagen fiber material, adding water, and boiling at 50° C. for 4 hours to obtain a gelatin solution;

[0039] 3. Filter the gelatin solution obtained in step 2 through a filter cloth, concentrate in vacuum, dry in sections, and pulverize to obtain a gelatin product.

[0040] The yield of the prepared gelatin is 70%, and the viscosity is 5.11mpa.s.

Embodiment 2

[0042] 1. Wash the chicken aggregates with clean water, demineralize and remove impurities, soak them in saturated lime water, replace with fresh saturated lime water every 24 hours, and wash the bones after 12 days of liming.

[0043]2. Mechanically crush the bone bone material obtained in step 1, add 0.07 mmol of hydrogen peroxide per gram of the bone bone material, add water, boil at 72° C. for 6 hours to obtain a gelatin solution.

[0044] 3, (same as step 3 of embodiment 1.)

[0045] The yield of the prepared gelatin was 66%, and the viscosity was 5.34mpa.s.

Embodiment 3～14

[0047] Examples 3 to 14 are multiple examples of extracting gelatin by using different raw materials for rubber production.

[0048] table 3

[0049]

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Abstract

The invention discloses a method for preparing gelatin by degrading collagenous fiber by using hydrogen peroxide, which comprises: subjecting an animal skin tissue or bone tissue to liming treatment first to obtain coarse collagenous fiber or ossein, and decocting the coarse collagenous fiber or ossein for 3 to 12 hours under a condition that the material to liquid ratio is 1:3 to 1:12, a condition that 0.02 to 1 mmol of hydrogen peroxide is added into each gram of coarse collagenous fiber or ossein material and a condition that the temperature is 50 to 80 DEG C in one step to obtain gelatin solution; and concentrating gelatin solution, drying the concentrate, and crushing the dried product to obtain the high-yield and high-quality gelatin. The method for preparing gelatin is simple and easy to implement, can degrade collagen tissues into gelatin at a lower temperature and in a shorter time period; and compared with the conventional gelatin production method, the method disclosed by the invention is short in production period, small in energy consumption and high in yield.

Description

technical field [0001] The invention mainly relates to a method for preparing gelatin, in particular to a method for preparing gelatin from animal rubber raw materials. Background technique [0002] Gelatin is a degradation product of collagen and is a water-soluble polymer hydrophilic colloid. Its aqueous solution has the characteristics of viscosity and thermal reversible gelation. Mixture, clarifying agent, etc., widely used in food, medicine, paper, textile and many other fields. [0003] The physical and chemical properties of gelatin are not only closely related to collagen tissues from different animal sources, but also affected by the production process of gelatin. According to different preparation methods, gelatin can be divided into acid gelatin, alkali gelatin and enzymatic gelatin. The acid method process is obtained by boiling collagen tissue at a lower pH, which has the advantages of short production cycle, simple equipment, low material consumption rate, an...

Claims

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Application Information

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IPC IPC(8): C09H3/00
Inventor 刘小玲何虹朱琪盛金凤姜元欣
Owner GUANGXI UNIV
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