How to identify the quality of edible fungi

The quality of the strains is directly related to the level of cultivation efficiency and success or failure. Therefore, it is very important for the majority of cultivated households to grasp the strain quality standards and learn how to identify strain quality.

One, mushrooms. The mycelium is grayish white, slightly blueish, finely velvet-like, and the hyphae are uniformly distributed on the upper and lower sides. There is no fan-shaped variation, and there is no yellow-white fungus that has a unique mushroom fragrance. The mycelium in the culture medium is fine or shallow, the mycelium is light yellow, atrophy or no hyphae can be seen, and the contents are in a paste form for excessive water or bacterial species aging; the mycelium in the upper part of the substrate shrinks and the lower bacteria The silk growth is still good, because the medium is too dry and the culture temperature is too high. The bacteria on the top of the bottle are too thick for aging or poor performance; white, light yellow cakes or green, yellow, black or white Orange and other mold colonies and insect pests will be eliminated.

Second, mushrooms. The hyphae are white cotton hairy, uniform and uniquely scented, no thick bacilli, easy to form primordium, and insect-resistant insects are excellent strains. The mycelium in the bottle is sparse and the sawdust particles are visible. For the lack of culture time or the source of nitrogen in the substrate, the mycelium in the bottle falls off and atrophy occurs. The worms are browned and used as soon as possible.

Third, the mushroom. The mycelium is thick, white, stout and cottony, with climbing walls. If the hyphae are sparse or in bundles, the medium is too wet; the mycelium grows slowly or does not grow downwards; the medium is too dry; a large number of primordiums are found in the bottle bag, which is too old for the bacteria; Atrophy, yellow effusion at the base, old strains, surface or bottle wall with mold, antagonist lines, wet spots are all contaminating bacteria.

Fourth, fungus. The hyphae are white, thick and powerful, and grow rapidly and neatly, and are good traits. After a period of culture, the chrysanthemum-like colloidal primordium, brown or dark brown, is a normal phenomenon. If the mycelium is sparse, the culture medium particles are similar to those of the mushroom strains. The primordium appears before the mycelium full bottle, which indicates that the physiological maturity is excessive, or that the number of tube transformations is excessive; the light yellow liquid at the base is an overage strain. The mycelium grows only in one corner, and no longer spreads in relation to the humidity of the culture material.

Fifth, white fungus. The proportion of white fungus mycelium and incense hyphae is appropriate, and a white hair group or colloidal ear group is formed on the culture medium. The gray ash of the bottle grows robustly, evenly, and can produce dark spots, and is later bundled under the base of the ear. Distribution, no other spots, Tremella mycelia eat deep, thick distribution under the ear, white hair group is strong, large ear base, is an excellent strain. Such as the white hair group is smaller, easy gelatinization, indicating that the bacteria species have been aging; Coprinus comatus is sparse, does not penetrate into the matrix, the fruiting body is micelle or glue-like, does not open the sheet, the medium is too wet; the surface mycelium is hidden Fading, reddening of the ear, and reddish-brown effusions are associated with contaminated fleas; the medium has a very thin layer of pellicles on the surface, and there is still a tremella primordium on the bottom, indicating that the strain is impure.

Six, mushroom. The mycelium is white, thick or has a fine powdery appearance; the viability is strong, and small fruit bodies appear as clusters at the later stage in the culture medium and are excellent strains. If the mycelium does not grow deep downwards. And there is a clear boundary related to the medium is too wet; hyphae are sparse, may be related to the lack of nitrogen content in the medium or the decline in the life of the bacteria; if the fruit body appears in the bottle wall, the stipe sticking out indicates that the culture medium shrinks the hyphae; The bottle is viscous and bacterial contamination.

Medical Protective Clothing

Ningbo DOKEE Medical Technology Co., Ltd. ,

Posted on