Mushroom modified atmosphere preservation technology

First, the collection of Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

Harvested when the fruiting body is fully grown into a volume that increases wood. If the harvest is too early, the quality of the mushrooms is not good, and the yield is reduced; if the harvest is too late, the fruiting bodies are more likely to age, open the umbrella, and change color. It is necessary to reduce mechanical damage during harvesting, and clean and disinfect the harvesting utensils and packaging containers. Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

Second, pre-storage treatment Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

After the mushroom is harvested, cut the mushroom handle. If the mushroom color is yellow or brown, rinse it in a 0.5% citric acid solution for 10 minutes. After the fish is removed, drain the water droplets and quickly pre-cool the mushrooms. Pre-cooling is very important. Because at higher temperatures, it will accelerate nutrient consumption, aging, and browning reactions. Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

Third, low temperature modified atmosphere storage Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

The pre-cooled mushrooms were placed in a storage bag made of a 0.025 cm thick polyethylene plastic film, and each storage bag was filled with 1 kg of fresh mushrooms. After sealing the mouth of the bag, the mushroom is stored in a cold storage, and the temperature of the mushroom body is lowered to 0-3 ° C within 4-5 hours, and the relative humidity is maintained at 95%-100%. The mushroom has a good storage effect when the oxygen concentration is 1%, the carbon dioxide concentration is 10%-15%, and the color of the mushroom body is white and the umbrella is extremely small. When the mushroom is just in storage, the temperature is above 10 °C and the breath is strong. Therefore, at the same time of cooling after storage, the oxygen concentration in the storage bag can be reduced to below 3% within 4-5 hours, and the carbon dioxide concentration is increased to more than 10%. When the temperature drops to a temperature suitable for storage of mushrooms, 0-3 °C, the respiration is weakened. After 1 day, the oxygen concentration in the bag reaches 1%, and the carbon dioxide concentration is 13%. At this time, a small needle is used to pierce a small hole in the bag. It can basically maintain the ratio of oxygen and carbon dioxide concentration. In the future management, humidification measures should be taken for the cold storage to ensure that the relative humidity in the bag is above 95%. Linyi Fertilizer Network Copyright

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