Artificial cultivation of Pleurotus ostreatus

In nature, animals, plants and fungi are tripartite and complement each other. If plants are the producers of nature, animals are the consumers of nature, and fungi are the decomposers of nature. It is the mutual coordination of the three that maintains the ecological balance of nature. among these three, our understanding of animals and plants has reached more than 80%, and our understanding of fungi can reach 5%, which shows that our understanding of fungi is still in its infancy.

Relevant experts predict that practical bacteria, as a supplement to food in the future, is not only a way to solve the world food shortage, but also a white revolution in agricultural development. Tea tree mushroom, which has been listed in the complete Collection of Edible Fungi in recent years, is a little-known large fungus. With its rich nutrition, delicious taste, crisp handle, strong edible value, as well as its special functions of invigorating qi and tonifying kidney, it leads the way in the mushroom kingdom.

For Pleurotus ostreatus, it is a good artificially cultivated bacteria at present, it contains polysaccharides, the accumulation of polysaccharides is about 11 times higher than that of Lentinus edodes, it contains 16 kinds of amino acids, of which 8 are essential amino acids for human body. The so-called Pleurotus ostreatus is commonly known as Pleurotus ostreatus. Wild Pleurotus ostreatus is a kind of fungus growing under Camellia oleifera trees in the forest for more than a hundred years, which has high medicinal value.

Pleurotus ostreatus only grows twice a year, and it will wait for more than 10 years to grow. therefore, wild Pleurotus ostreatus is very precious and rare. in order to realize the artificial cultivation and large-scale production of wild Pleurotus ostreatus, as early as the 1930s, Japanese experts began to study. Since the 1950s, Chinese practical fungus experts have also carried out long-term domestication, rejuvenation, cultivation and experiments, but with little success. The main reason is that the strain of Pleurotus ostreatus has very poor ability to decompose lignin and can not be associated with and symbiosis, just like the rejection phenomenon produced by people of different blood types during blood transfusion, microorganisms of different classes, different orders, different species and different genera also have this characteristics. in addition, the strain of Pleurotus ostreatus is easy to be infected from inoculation to culture, low survival rate and high cost, so it is difficult to achieve large-scale production.

Xie Yongtai, director of the China practical Fungi Association, after more than 10 years of exploration with researchers, finally successfully isolated a special lignin-decomposing strain, AB6-2 and Guang A-1. This strain which can be associated with tea tree mushroom has a high survival rate, a genuine mushroom rate of 98%, strong disease resistance and a small amount of infection. It can still produce mushrooms and adapt to a wide range of temperatures, ranging from 12 degrees Celsius to 32 degrees Celsius. The production cycle is short, it takes only 45 to 55 days from inoculation to mushroom production, and the yield is high, and the biological efficiency can reach 90% 120%. For this reason, this achievement is listed as the key project of Asia-Pacific international investment in the mainland and the key project of science and technology development of the State Science and Technology Commission.

Through continuous efforts and through research and practice, inspired by the cultivation of plant flowers and fruits in nutrient solution, researchers have successfully developed a new technology of cultivating Pleurotus ostreatus with nutrient solution. This invention adopts a special formula to cultivate and grow seed entities in a static anaerobic supply environment, which solves the problem that static anaerobic can not decompose and absorb the culture medium, which creates a new way for the cultivation and production of all practical bacteria. The nutrient solution of cultivated practical bacteria takes potatoes, soybeans, glucose and protein as the main raw materials, does not contain any chemical components and hormones, does not need film bags in cultivation, will not cause white pollution, and can save wood and protect forest resources. it is a veritable green food, the 21st century will be the century of great development of bacteria, practical bacteria, like other green food, must become an indispensable new food resource for human beings.