Fermentation crude extract, preparation method and application

• Main Authors: ZHANG XIAOYING, WANG SHANSHAN, KONG BO, WANG HONGFENG, GENG QUANZHENG, WANG QINGBIN, YANG QING, ZHAO HONGLING
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; CULTURE MEDIA; DISPOSAL OF SOLID WASTE; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FERTILISING; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PERFORMING OPERATIONS; PLANTING; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; SOWING; SPIRITS; TRANSPORTING; TRAPPING; VINEGAR; WATERING; WINE

The invention belongs to the technical field of microbial application, and particularly discloses a fermentation crude extract, a preparation method and application, the fermentation crude extract is an ethanol extract of an Alternaria fungus CBSX2 fermentation broth, and comprises Alternaria fungus CBSX2 mycelium and Alternaria fungus CBSX2 extracellular polysaccharide, and the Alternaria fungus CBSX2 extracellular polysaccharide is an ethanol extract of the Alternaria fungus CBSX2 fermentation broth. The crude extract is prepared through liquid submerged fermentation, alcohol precipitation, separation, drying and smashing in sequence, the preparation process is simple, use is convenient, and the defect that a fungus living body is unstable is overcome; the crude extract can be used for adsorbing Cd in water or other substances; when the composition is applied to crops, the content of available Cd at the roots of the crops can be reduced, Cd enrichment of the crops is reduced, the crop resistance is stimulat