FIELD: chemistry.
SUBSTANCE: invention relates to leather industry and can be used in treating raw wastes to obtain an ecologically clean protein hydrolysate and for use in medicine, when producing cosmetic products and as a cattle feed additive. The method of producing a protein hydrolysate involves washing and treating raw wastes from leather production, the treatment being carried out in two steps: at the first step the wastes are treated with an extractive solvent selected from esters at boiling point of the solvent, followed by drying; at the second step the wastes are treated with unsaturated steam at pressure of 1 atm and temperature of 100°C with weight concentration of the steam in water of 5-10% until full extraction of collagen.
EFFECT: obtaining an ecologically clean protein hydrolysate with quantitative output and wider field of practical use thereof.
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| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING PROTEIN HYDROLYSATE | 2012 |
|
RU2486212C1 |
| PROTEIN FEED ADDITIVE "BIOLSOW" FOR FOOD RATION OF FARM ANIMALS | 2014 |
|
RU2574682C1 |
| METHOD OF PROCESSING UNTANNED WASTE OF LEATHER PRODUCTION FOR FOOD | 0 |
|
SU1132893A1 |
| METHOD OF OBTAINING FOOD ADDITIVE FROM TANNED UNPAINTED LEATHER WASTE | 0 |
|
SU1138101A1 |
| METHOD OF PRODUCING PROTEIN HYDROLYSATE | 2008 |
|
RU2375385C1 |
| METHOD FOR PRODUCTION OF ACETIC DISPERSION OF HIGH MOLECULAR FISH COLLAGEN | 2014 |
|
RU2567171C1 |
| METHOD OF PRODUCING PROTEIN HYDROLYZATE | 0 |
|
SU1787010A3 |
| METHOD OF PRODUCTION OF THE PROTEIN HYDROLYZATE | 2005 |
|
RU2283351C1 |
| COLLAGEN CONTAINING COMPOSITION | 2008 |
|
RU2410242C2 |
| METHOD OF PRODUCING NANOSIZED LYOPHILISED COLLAGEN HYDROLYSATE | 2023 |
|
RU2824997C1 |
