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A collagen and ultra-low-molecular-weight technology, applied in the field of ultra-low-molecular-weight collagen extraction, can solve the problems of waste and low product quality.
Inactive Publication Date: 2011-04-27
ZHEJIANG JIDA BIOTECH
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[0006] The present invention mainly solves the problem of retaining a large amount of high-molecular collagen that is difficult for the human body to absorb in the products of the prior art, and also leaves a large amount of collagen in the raw materials that has not been completely extracted, resulting in low product quality and serious waste To solve the technical problems of etc., provide a method for extracting ultra-low molecular collagen that can keep the molecular weight of a large amount of collagen products below 3000 Daltons and fully extract the collagen in the raw material
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[0024] Embodiment: a kind of extraction method of ultra-low molecular weight collagen, it is characterized in that it comprises the following steps:
[0025] The first step is to soak the pigskin or cowhide with water;
[0026] In the second step, the washed pigskin or cowhide is mixed with water for heating and cooking to form a low-concentration glue with 5%-10% collagen, and the mass ratio of pigskin or cowhide to water is 1:1. In the heating and cooking process, firstly, the pigskin or cowhide is mixed with water in a ratio of 1:1 to cook at 40-50 degrees Celsius for 6 hours, and after the cooking is completed, the formed glue is mixed with the remaining pigskin or cowhide. Filtration and separation; then, the remaining pigskin or cowhide is mixed with water in a ratio of 1:1 and steamed for 5 hours at 50-70 degrees Celsius, and the formed glue is mixed with the remaining pigskin or cowhide after cooking. The cowhide is filtered and separated; finally, the above-mentioned...
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Abstract
The invention relates to a method for extracting ultralow molecular collagen. The method for extracting the ultralow molecular collagen is characterized by comprising the following steps of: 1, rinsing porcine skin or bovine skin by using water; 2, heating and stewing the cleaned porcine skin or bovine skin with water; 3, removing partial moisture from the low-concentration colloidal liquid through an evaporator; 4, adding 1 to 3 percent trypsin into the high-concentration colloidal liquid to perform enzymolysis; and 5, purifying and sterilizing the ultralow molecular collagen liquid, and drying the ultralow molecular collagen liquid into collagen powder through a spray dryer. The method for extracting the ultralow molecular collagen can keep the molecular weight of a large amount of collagen finished product below 3,000 Daltons and fully extract the collagen in the raw materials.
Description
technical field [0001] The invention relates to a method for extracting collagen, in particular to a method for extracting ultralow molecular weight collagen. Background technique [0002] With the improvement of people's quality of life, the use of collagen is increasing, from being added to dairy products, that is, various fruit milks, to being added to meat products, fish products, wine products, condiments and other foods , this is because collagen contains a variety of amino acids, 9 of which are essential for human life, such as glycine, alanine, glutamic acid, arginine, proline, hydroxyproline, aspartic acid , serine, etc. The molecular weight of collagen currently on the market is generally between 500-5000 Daltons, while the molecular weight of collagen that can be fully absorbed by the human body is generally less than 3000 Daltons. Therefore, a large part of the collagen currently on the market is generally difficult to be absorbed by the human body, so it will ...
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