Water-retaining agent for shiitake mushroom sticks and preparation method of water-retaining agent

• Main Authors: CHANG SHUMAN, QIN ZHISHENG
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; GENERAL PROCESSES OF COMPOUNDING; HORTICULTURE; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WATERING; WORKING-UP

The invention belongs to the technical field of agricultural materials, and provides a water-retaining agent for shiitake mushroom sticks and a preparation method of the water-retaining agent. The water-retaining agent is prepared from the following raw materials in parts by weight: polylactic acid, silver ion modified carbon nanotube/cellulose powder, biological natural macromolecules, calcium ion-containing salt and a biodegradation catalyst. The water-retaining agent is excellent in mechanical property, good in antibacterial property, environmentally friendly, easy to degrade and short in degradation time. The preparation method comprises the following steps: (1) preparing silver ion modified carbon nanotube/cellulose powder dispersion liquid; (2) preparing a biological natural polymerdispersion liquid; (3) preparing a pre-polymerization solution; and (4) extruding to form a film. The preparation method is easy to operate, environmentally friendly and free of pollution, and the water-retaining agent with e