Extraction method of collagen peptide contained in scaly fish skin
The technology of collagen peptide and extraction method is applied in the field of extraction of collagen peptide from scaly fish skin, and can solve the problems of increased production cost, consumption of water resources, high input cost of strong acid sewage, etc. The effect of water demand reduction
Active Publication Date: 2015-03-25
微肽科技(海南)有限公司
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Problems solved by technology
[0004] During the whole extraction process, at least 15 tons of water are required for descaling and hydroxyapatite removal (deliming) of 1 ton of scaled fish skin, which consumes a lot of water resources and increases production costs; moreover, the strong acidic sewage produced Requires high cost to process
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Embodiment 1
[0020] Embodiment 1 of the present invention provides a kind of extraction method of collagen peptide in scale fish skin, by weight, such as figure 1 shown, including the following steps:
[0021] Step 101: Add 0.003-0.01 part of sodium carbonate and 2-3 parts of water to 1 part of scaled fish skin, stir, drain, and then add 1-3 parts of water to wash to obtain degreased scaled fish skin;
[0022] Step 102: adding 2-5 parts of water to the degreased scaled fish skin, mixing and pulverizing to obtain a slurry;
[0023] Step 103: Adjust the temperature of the slurry to 50-65° C., adjust the pH value of the slurry to 8-9, and then add 0.001-0.004 parts of alkaline protease for enzymolysis to obtain an enzymolysis slurry;
[0024] Step 104: Filtrate the enzymolysis slurry to obtain a clear liquid, and add 0.02-0.05 parts of activated carbon to the clear liquid, stir, and then filter to obtain a filtrate and a filtrate;
[0025] Step 105: Concentrate the filtrate and spray dry to...
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The invention relates to the field of food processing, and particularly relates to an extraction method of collagen peptide contained in scaly fish skin. The extraction method can simplify the steps of cleaning and hydrochloric acid adoption, reduce the water consumption and lower the cost. Based on parts by weight, the method comprises the following steps: A: adding 0.003-0.01 part of sodium carbonate and 2-3 parts of water to 1 part of scaly fish skin, stirring, discharging water, and then adding 1-3 parts of water for cleaning to obtain defatted scaly fish skin; B adding 2-5 parts of water to the defatted scaly fish skin, mixing, and smashing to obtain slurry; C: regulating the temperature of the slurry to 50-65 DEG C, and regulating the pH value of the slurry to 8-9, and then adding 0.001-0.004 part of proteolytic enzymes for enzymolysis to obtain ezymolytic slurry; D: filtering the ezymolytic slurry to obtain a clear solution, adding 0.02-0.05 part of active carbon to the clear solution, stirring, and then filtering to obtain filter liquor and a filtering medium; and E: concentrating the filter liquor, and carrying out spray drying to obtain the collagen peptide.
Description
technical field [0001] The invention relates to the field of food processing, in particular to a method for extracting collagen peptides from scaled fish skin. Background technique [0002] Fish scales and skins are rich in collagen, such as tilapia, carp, etc. Therefore, fish skin with scales is often used as the raw material for extracting collagen peptides. [0003] At present, the relevant extraction process for extracting collagen peptides from scaled fish skin is: first, use a descaling machine to separate the fish skin from the scales, that is, descale, and wash the scales and skin with a large amount of water to remove the scales and skin. Mucus and other impurities on the surface; then use hydrochloric acid to remove a large amount of hydroxyapatite Ca10(PO4)6(OH)2 wrapped on the surface of fish scales, and then wash away the generated strongly acidic phosphoric acid and residual strongly acidic hydrochloric acid with a large amount of water; finally The collagen i...
Claims
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IPC IPC(8): C12P21/06
Inventor 程云开
Owner 微肽科技(海南)有限公司