Where can I buy white-yellow oyster mushroom spawn? How do I cultivate it?

I believe many people have eaten white-yellow oyster mushrooms. It is a widely artificially cultivated edible mushroom with an affordable price, a relatively fresh and delicious taste, and a certain nutritional value, and many people buy it to eat. So where can you buy white-yellow oyster mushroom spawn? How do you cultivate it? The editor will explain below.

1. Where can you buy white-yellow oyster mushroom spawn?

Generally speaking, white-yellow oyster mushroom spawn is sold in some shops that specialize in selling mushroom spawn. For convenience, you can also buy it online. Our Nongxunwang e-commerce platform sells relatively high-quality white-yellow oyster mushroom spawn, and friends in need can take a look.

2. Cultivation of white-yellow oyster mushroom spawn

1. Spawn refers to the propagation material composed of edible mushroom mycelium and its growth substrate. Spawn is divided into three grades: mother spawn (first-grade spawn), stock spawn (second-grade spawn), and cultivation spawn (third-grade spawn). For useful strains in industrial fermentation, the screening steps include strain isolation, primary screening, and secondary screening.

2. Selecting useful strains with a certain ability is also called seed preparation, which refers to the preparation process in which strains, under certain conditions, undergo expanded cultivation to become pure production strains with a certain quantity and quality. This is used for inoculation into fermentation tanks to further expand the cell mass and synthesize products.

3. Seed preparation includes spore preparation and mycelium preparation, that is, spawn preparation.

4. For production strains preserved in sand tubes or cryotubes, use aseptic procedures to pick a small amount and inoculate it onto agar slant medium, then culture it at 25°C (or a higher temperature) for 5 to 7 days (or a longer time). The resulting spores still need to be further cultured on a solid medium with a larger surface area to obtain more spores (for mold spore preparation, natural media such as rice and millet are mostly used).

5. Make the mature slant spores into a suspension, inoculate it onto solid medium in flat bottles, and culture at 25 to 28°C for 14 days. Vacuum-dry the mature flat-bottle spores to reduce the moisture content to below 10%, and place them in a 4°C refrigerator for later use. A batch of prepared spore bottles can continue to be used in production for about half a year.

6. If some production strains do not produce spores, such as gibberellin-producing bacteria, or produce few spores, then shake-flask liquid culture can be used to prepare mycelium as the seed for a seed tank. The purpose of the seed tank is to enable the limited inoculated spores or mycelium to rapidly germinate, grow, and reproduce into a large amount of cell mass. The medium components in it should be carbon sources easily utilized by the cells (such as grape sugar) and nitrogen sources (such as corn steep liquor), as well as inorganic salts (such as phosphate), etc. The seed used for the fermentation tank should be vigorous, deeply stained, with thick mycelium, and free of contaminating bacteria and abnormal cells. The inoculation amount is generally 10% to 20%.

After reading the above, everyone probably has some understanding of white-yellow oyster mushrooms. This kind of mushroom food does not take very long to cultivate, but everyone should choose relatively high-quality spawn, otherwise the taste and nutrition will be affected.

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