Black fungus strains to buy precautions

The cultivation of black fungus has a long history, is the world's first artificial cultivation of edible fungi varieties, has been more than 1400 years of history, now more people grow fungus. If you want to cultivate black fungus, the strain is the focus, so what medicine to pay attention to when selecting the strain? Let's get to know each other.

1. Pay attention to the appearance

When buying, you should see whether the label of the bottle is consistent with the black fungus species, so as to avoid buying mistakes. The culture time should be within two months, calculated from the inoculation date. The age of bacteria should be 30-40 days, and it depends on whether the bottle wall is broken or the tampon falls off. If so, do not choose.

2. Pay attention to hyphae

To hyphae white purity high, thick and short dense Qi for high-quality strains, if there are green, yellow, red, green, gray and other colors of hyphae, it means hyphae also do not other miscellaneous bacteria infection, to feed out, not to buy.

3. Pay attention to the ear base

Between the bottle wall and the material, if my light black ear base is a high-quality strain, if a small amount of ear base is a normal strain, if the number is too large, then it represents too many passages, although the ear is early and many after inoculation, but it does not grow, the yield is low, it is not recommended to buy. In addition, if there is no or only light brown colloid on the bottle wall, it is a qualified strain. If there is yellow liquid, it belongs to aging strain and cannot be purchased.

4. Pay attention to the bacteria block

Sawdust strains are long on the surface of hyphae, can not see sawdust, dug out to block rather than loose is better, if the bacteria block has dried up shrinkage is not available, not recommended to buy.

5, pay attention to smell

Pulling out the tampon and smelling the fragrance of the strain, it is qualified; if it emits peculiar smell such as wine acid and mildew, it is a deteriorated strain and cannot be used.

The above is an introduction to the precautions for the purchase of black fungus strains. I hope it can help you. If you want to know more about it, please pay attention to us.