Antarctic krill antioxidant peptide as well as preparation method and application thereof

The invention belongs to the technical field of biological fermentation engineering, and discloses an Antarctic krill antioxidant peptide as well as a preparation method and application thereof. The method comprises the following steps: (1) uniformly mixing defatted Antarctic krill powder, water and...

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Hauptverfasser:	ZHANG DENGHUI, LOU WENYONG, WANG BO, YANG JIGUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROCESSES USING MICROORGANISMS SPIRITS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention belongs to the technical field of biological fermentation engineering, and discloses an Antarctic krill antioxidant peptide as well as a preparation method and application thereof. The method comprises the following steps: (1) uniformly mixing defatted Antarctic krill powder, water and a carbon source, and adjusting the pH of the solution to 7.0 to 7.5, and sterilizing to obtain an Antarctic krill powder solution; (2) inoculating bacillus subtilis into a liquid culture medium, and culturing on a shaking table for 20 to 24h at a temperature of 29 to 31 DEG C to obtain a bacillus subtilis seed liquid; (3) mixing the bacillus subtilis seed liquid with the Antarctic krill powder solution, fermenting on the shaking table for 35 to 42h at a temperature of 30 to 40 DEG C, centrifuging, concentrating a supernatant, and drying to obtain the Antarctic krill antioxidant peptide. The method is simple and environmentally friendly; the molecular weight of peptide is between 1000 and 7000Da, and the antioxidan