FIELD: food industry; biotechnology.
SUBSTANCE: invention relates to food industry and biotechnology. Gutter cut and bottom cutter is washed with running water. Method includes hydrothermal treatment of raw material, soling and neutralization as follows. Feed is placed in 2–3 % hydrogen peroxide solution. Potassium iodide is added in amount of 1.5–2 % of the weight of the raw material. Heating to temperature 100 °C and held in this mode for 8 minutes. One adds sodium hydroxide 1.5–2 % concentration for collagen separation during 5-6 hours. Mixture is washed for 60–65 min after alkaline treatment in running water. Neutralize with acetic acid to pH 7.0. Raw material is ground and homogenised.
EFFECT: invention simplifies the method of obtaining the target product, shortens the time required for the preparation process and increases the degree of collagen purification.
1 cl, 2 ex
| Title | Year | Author | Number |
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