A method for extracting gelatin by using waste capsule shells

A technology of capsule shell and gelatin, which is applied in the field of gelatin extraction, can solve the problems of large environmental pollution, high recovery cost, large amount of diatomite and flocculant, etc., and achieves the effects of simple extraction process operation and high extraction rate.

Active Publication Date: 2018-01-23
ANHUI BBCA FERMENTATION TECH ENG RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, when manufacturers use waste capsule shells to prepare gelatin, they mainly use diatomaceous earth and flocculants to recycle gelatin through flocculation and sedimentation. However, the excessive use of diatomaceous earth and flocculants in this method directly leads to high recycling costs. method pollutes the environment

Method used

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  • A method for extracting gelatin by using waste capsule shells

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Comparison scheme
Effect test

Embodiment 1

[0036] Step (1): Weigh 10 kg of dry waste capsule shells, rinse them with pure water in advance, use 20L of pure water for each rinse, rinse 4 times, and rinse with water for later use;

[0037] Step (2): Add the rinsed spent capsule shells into pure water and completely dissolve them in a water bath at 60°C to obtain glue; control the amount of water added so that the specific gravity of the glue is controlled at 1.009 at 50°C.

[0038] Step (3): the rinsing water in the step (1) is filtered by a reverse osmosis membrane, the reverse osmosis membrane aperture is 1nm, the inlet pressure is 0.28Mpa, the outlet pressure is 0.18Mpa, and the membrane flux is 18LMH to obtain the reverse osmosis permeate and reverse osmosis retention solution; the reverse osmosis retention solution is vacuum concentrated to a dry matter content of 37%, the temperature is controlled at 70°C, and spray drying is carried out, the inlet air temperature is 200°C, and the outlet air temperature is 90°C to ...

Embodiment 2

[0046] Step (1): Weigh 10 kg of dry waste capsule shells, rinse them with pure water in advance, use 15 L of pure water for each rinse, rinse 5 times, and rinse with water for later use.

[0047] Step (2): Add the rinsed spent capsule shells into pure water and completely dissolve them in a water bath at 60°C to obtain a glue. Control the amount of water added so that the specific gravity of the glue is controlled at 1.010 at 50°C.

[0048] Step (3): The rinsing water in the step (1) is filtered by reverse osmosis, the reverse osmosis membrane aperture is 0.8nm, the inlet pressure is 0.28Mpa, the outlet pressure is 0.18Mpa, and the membrane flux is 16.3LMH to obtain the reverse osmosis membrane filtrate and reverse osmosis retention solution; the reverse osmosis retention solution is vacuum-concentrated to a dry matter mass content of 37%, the temperature is controlled at 70°C, spray-dried, the inlet air temperature is 200°C, and the outlet air temperature is 90°C to obtain foo...

Embodiment 3

[0056] Step (1): Weigh 10 kg of dry waste capsule shells, rinse them with pure water in advance, use 28L of pure water for each rinse, rinse 3 times, and rinse with water for later use.

[0057] Step (2): Add the rinsed waste capsule shells into pure water, set the volume to 25L in a water bath at 60°C until completely dissolved, and obtain the glue; control the amount of water added so that the specific gravity of the glue is controlled at 50°C At 1.009.

[0058] Step (3): The rinsing water in the step (1) is filtered by a reverse osmosis membrane, the reverse osmosis membrane pore size is 0.5nm, the inlet pressure is 0.28Mpa, the outlet pressure is 0.18Mpa, and the membrane flux is 15.1LMH to obtain reverse osmosis osmosis liquid and reverse osmosis retaining liquid; the reverse osmosis retaining liquid is subjected to vacuum concentration treatment, the dry matter mass content is 37%, the temperature is controlled at 70°C, the air inlet temperature is 200°C for spray drying...

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Abstract

The invention relates to the field of gelatin extraction, and specifically provides a method for extracting gelatin from waste capsule shells. At present, pharmaceutical factories generally use diatomaceous earth and flocculant flocculation and sedimentation to recover gelatin in waste capsules, but this method consumes a large amount of diatomite and flocculant, which not only has high recycling costs, but also causes great environmental pollution. In the invention, after dissolving the waste capsule shell, the ceramic membrane with a pore size of 0.4 μm to 1.4 μm is used to filter, and then the filtered permeate is concentrated, frozen, granulated and dried to extract the gelatin. The extraction rate of the gelatin extraction process of the present invention can be as high as 99.7%, and the purity can be as high as 92.44%, reaching the standard of food-grade gelatin. The extraction process of the invention is simple to operate, environmentally friendly and suitable for industrial production.

Description

technical field [0001] The invention relates to the field of gelatin extraction, and specifically provides a method for extracting gelatin from waste capsule shells. Background technique [0002] Gelatin is the collagen contained in animal skin, bone, cartilage, ligament, sarcolemma, etc., which is a high-molecular polypeptide polymer obtained after purification and primary hydrolysis. In addition to a small amount of water and inorganic salts, gelatin products contain more than 82% protein, no fat, no cholesterol, and 18 kinds of amino acids, 7 of which are essential amino acids for the human body. Gelatin is widely used in food additives and capsules of pharmaceutical pills for civil use; in industry, gelatin is also used in photographic film, X-ray film, aviation film, wood-based panel gluing, belt adhesive, rubber products, cotton cloth and papermaking, etc. Indispensable raw materials. The finished product of gelatin is a colorless or light yellow, transparent or tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09H3/00
Inventor 王超杨为华潘声龙徐斌张雪锋
Owner ANHUI BBCA FERMENTATION TECH ENG RES
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