There are many wonderful ways to keep edible fungi fresh.
Because edible fungi generally have high water content, rich nutrition, tender texture and strong physiological and biochemical activities, if they are not processed and processed in time after harvest, the commodity quality will be seriously affected, resulting in greater economic losses. In order to avoid the loss of edible fungi which can not be sold or processed in time after harvest, mushroom farmers must master the fresh-keeping technology of edible fungi. Through the preservation of edible fungi, the flavor of the fresh products can be kept basically unchanged, and its nutritional value can be preserved to the maximum extent, and it is convenient for storage, processing and transportation. This paper introduces several wonderful methods of preservation of edible fungi, which are rarely put into production, the method is simple, easy to grasp and excellent effect.
1 quick-frozen preservation method
This method is suitable for Pleurotus ostreatus and other edible fungi to keep fresh. After the fresh mushrooms are harvested, they are divided into single fruiting bodies with scissors and knives, rinsed and distributed according to the size and tenderness of the mushrooms. Then boil the mushrooms in a cauldron with water and put in the washed mushrooms. The amount of fresh mushrooms added is 20% of boiling water, 30%, stir in one direction with a leaky spoon or shovel, turn when Pleurotus ostreatus is soft, remove it from the pot and place it in a large vat filled with cold water, cool it and drain it in a sieve. Seal it in a non-toxic plastic food bag of the corresponding size according to 1 kg or 0.50 kg. Finally, put the mushrooms into the food box and put them in the cold storage (the temperature is about-18 ℃). They can be taken out at any time when they need to be sold or processed.
2 low temperature fresh-keeping method
This method is suitable for the preservation of straw mushroom and other edible fungi. When straw mushrooms are harvested and shipped in time, 70% of the straw mushrooms are mature. Straw mushroom transport loading box usually uses a wooden box or plastic box about 40 centimeters high, the lower part is covered with a layer of crushed ice 5 centimeters thick, covered with plastic film, about 20 centimeters thick fresh straw mushroom, then covered with plastic film, and then covered with a layer of crushed ice. Then build up a box and load it for transportation. It can also be packed in cartons with a height of 25 centimeters and immediately sent to a freezer with a cooler to cool down to about 14 ℃. The above two methods can prolong the storage life of volvariella volvacea by 4 times and reduce the phenomenon of opening umbrellas.
3The method of cooling and keeping fresh
This method is suitable for the preservation of mushrooms and other edible fungi. Fresh mushrooms are packed in plastic bags 30 microns thick and stored in 1 ℃ for 18 days, 14 days at 6 ℃ and 5 days at 15 ℃.
4 modified atmosphere fresh-keeping method
This method is suitable for the preservation of mushrooms and other edible fungi. The gas exchange window made of silicone rubber film was embedded on the side wall of the plastic bag to store the fresh-keeping mushrooms. The effect was remarkable within 5 days. After removing the sediment and other sundries from the mushroom feet, the freshly harvested fresh mushrooms are packed in wooden boxes with a thickness of 30 ℃ and 35 cm. After loading, the mouth of the box is sealed and preserved in the environment of 18 Mueller and 20 cm. The fresh-keeping effect is ideal.
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Four New methods for keeping Edible Fungi fresh
The mushroom body of edible mushroom is easy to brown and rotten, and it is not easy to preserve, which affects the commercial value of edible mushroom. In this paper, several new fresh-keeping methods of edible fungi are introduced. 1. The new method of chemical preservation of Pleurotus ostreatus removes impurities from fresh Pleurotus ostreatus and spreads it flat on a clean plastic film. Make a certain concentration of chemical antistaling agent (0.3% calcium propionate, 0.1% potassium sorbate, 0.25% sodium sulfite) solution, spray the front and back of Pleurotus ostreatus evenly with a sprayer, then put it into a fully enclosed plastic bag and store it in a clean and hygienic place.
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It is the key to protect flowers and fruits for high yield of Chinese wolfberry.
Serious flower and fruit drop is an important reason affecting the yield of Lycium barbarum. This paper introduces several effective prevention and control methods. First, foliar fertilizer spraying on the basis of good application of basic fertilizer, foliar fertilizer spraying at flowering and fruit stage can reduce flower and fruit drop. However, the effect of spraying fertilizer on preventing flower and fruit drop is also different with different types and proportion of fertilizer spraying. According to the experiment, foliar fertilizer spraying increases the fruit setting rate by 38% compared with water spraying. The effect of ternary compound fertilizer sprayed with nitrogen, phosphorus and potassium is the best, and the proportion of 1:1:1 is the best. Compared with spraying water, it reduces the drop of flowers and fruits by 55%.
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