I. The best time for harvesting Agaricus bisporus timely harvesting is when the mushroom umbrella will be opened but the pellicle membrane is not broken; Pleurotus ostreatus is best harvested when the color of the mushroom body is darker, the edge of the cap has not been fully expanded, and the spores have not been bombed. . After harvesting, the mushrooms were graded in a arbor, and unescorted mushrooms, mushrooms, and worms were selected for storage. Second, the storage method 1. Low-temperature storage: Agaricus bisporus after grading by selection, rinse with water, in order to prevent the mushroom yellow or brown, can be placed in 0.01% sodium metabisulfite aqueous solution rinse 3 to 5 minutes. Quickly cool the mushroom body with cold water, as soon as possible to 0 ~ 3 °C. Drain the water and put it in a ventilated plastic box. Store it in a cold room with a temperature of 0 to 3°C and a relative humidity of 90% to 95%. Pay attention to ventilation. This method can keep fresh for 8 to 10 days. Pleurotus ostreatus after removal of impurities, placed in 0.03 ~ 0.04 mm thick polyethylene plastic bag (preferably hit a few holes) and Zhakou, or placed in a plastic frame and covered with a layer of wet cloth, placed in a 3 ~ 4 °C cold storage During storage, it can be stored for 7 to 10 days. Too low temperatures not only increase costs, but also cause chilling damage. 2. Atmospheric storage of film bags: After grading the Agaricus bisporus, the water is drained. After cooling, every kilogram is packaged in a plastic bag of 0.025 millimeters, and the gas composition in the bag can be automatically adjusted so that the oxygen content is about 1%. The carbon dioxide content is 2% to 5%. At this time, the growth of the mushroom body is inhibited, and the opening of the umbrella is small and the mushroom color is white. Pleurotus ostreatus is not sensitive to carbon dioxide. The use of ordinary polyethylene plastic bags can achieve the purpose of controlled atmosphere storage. The bag is best placed on absorbent materials to absorb condensate, which can be stored at room temperature for 7 days. If the time is too long, the carbon dioxide content in the bag is too high, which will affect the flavor of the mushroom. 6-8 holes with large holes can be pierced on the plastic bag to promote gas exchange. 3. Radiation storage: Agaricus bisporus was packed in a porous polyethylene plastic bag and irradiated with γ-rays. The dose was 2000 to 3000 g. The irradiated mushrooms had less water evaporation and a low weight loss rate, which significantly inhibited the browning and breaking of the mushroom and the opening of the umbrella. The irradiated mushroom can be stored for 4 to 5 days under the condition of 16 to 18°C ​​and relative humidity of 85%, and the storage time is longer under low temperature conditions. Pleurotus ostreatus after bagging, with γ-ray irradiation, a dose of 1000 Ge, after 0 ~ 3 °C cold storage, can be stored for 1 month 4. Solid preservative storage: The fresh mushroom on the coating agent (such as Soak in glycerin or gelatin for 3 to 5 minutes, then collect and drain and put it in a polyethylene plastic bag, 0.5 kg of each mushroom. After encapsulating 1 g of sodium dithionite (deoxidizer) and a small amount of activated carbon, use a paper bag. Together into a plastic bag, tie bag mouth, placed at 16 ~ 18 °C conditions can be stored for 6 to 7 days.
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