Edible mushroom preservation method 12
Fresh mushrooms harvested in the cold storage are cleaned and put into baskets and baskets and covered with multilayer wet gauze or sacks. Put the cylinder in the cool place, there is a small amount of clear water in the cylinder, place the wooden frame on the water, place the basket on the wooden frame, and then close the cylinder mouth with a film. After dormancy preservation and harvesting, it shall be placed in a room with a temperature above 25 degrees Celsius for 3-5 hours to allow it to breathe vigorously, and then it shall be left to rest in the cold storage at around 0 degrees Celsius for about 12 hours, and the preservation period at about 20 degrees Celsius shall be about 4-5 days. The method of fresh air conditioning is to artificially control the temperature, humidity and gas composition of the environment to achieve the purpose of preservation. Simple modified atmosphere preservation The fresh mushrooms such as shiitake mushrooms, and Agaricus bisporus are stored in air-conditioned bags containing 1% to 2% oxygen, 58% to 59% nitrogen, and stored for 8 days at 20 degrees Celsius. “Silicon window†bags keep fresh silicone rubber in proportion to the bag freshness. The silicone rubber is embedded in the wall of plastic bags in proportion to form a “silicon window†fresh-keeping bag with freshness preservation. The plastic bag can rely on the "silicon window" to automatically adjust the ratio of oxygen and carbon dioxide in the bag. In order to achieve the purpose of safe storage of fresh mushrooms. Radiation treatment can effectively reduce the deterioration of fresh mushrooms and so on, and has received better preservation effect. Pleurotus ostreatus radiates freshness to irradiate Pleurotus ostreatus with 60 rays of cobalt, radiation dose is 5-10 million rads, store at 0 degrees Celsius condition, maintain the fresh mushroom's color, odor and texture etc. shape for 7-10 days. The straw mushroom radiation and fresh-keeping treatment uses Cobalt 60-rays to process paper-plastic bags of straw mushrooms. The radiation dose is between 80,000 and 120,000 rads. It is kept at 14-16 degrees Celsius for 2-3 days, and the commodity characters are good. Chemical preservation chemical preservation is the use of chemical substances to inhibit the respiratory intensity of the bacteria used, and to prevent the activity of spoilage microorganisms. Salt soaking treatment Immerse fresh mushrooms in 0.6% salt water for about 10 minutes. Drain them into plastic bags and store them. At 10-25 degrees Celsius, 4-6 hours, fresh mushrooms turn bright white and they can be fresh. 3- 5 days. Sodium metabisulphite spraying Spray the mushroom body with 0.15% sodium metabisulfite aqueous solution and store at 15-20 degrees Celsius for 5-8 days. Than Jiu preservation of 0.001% -0.1% than the long-term solution soak fresh mushrooms for 10 minutes at 5-22 degrees Celsius can be preserved 5-8 days.
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