Rice straw culture medium and preparation method thereof

Abstract

The invention discloses a rice straw culture medium and a preparation method thereof. The rice straw culture medium comprises the following components in percentage by weight: 30-40 percent of rice straw or rice husk, 30-40 percent of cottonseed hull, 2-7 percent of bean pulp, 7-15 percent of wheat bran, 7-15 percent of rice bran, 3-9 percent of corn flour and 0.5-3 percent of quicklime. The preparation method comprises the following steps: stacking for primary fermentation, controlling temperature of secondary fermentation, and performing pasteurization. According to the culture medium, weed tree sawdust is replaced by the rice straws to prepare a medium for culturing pleurotus eryngii culture materials, so that the problem of treatment difficulty of rice straws can be solved; the culture medium is prepared by utilizing rice straws, and the bioconversion rate is increased to 91.56 percent; the fermentation time can be greatly shortened by utilizing microbial flora and temperature-control fermentation technologies in the culture medium fermenting process, and fermentation can be completed when lasting for 5-10 days.

Description

technical field [0001] The invention belongs to the cultivation technology of edible fungi, and in particular relates to a rice straw culture medium and a preparation method thereof. Background technique [0002] Using rice straw as one of the main raw materials to cultivate straw mushrooms, Flammulina velutipes, Coprinus comatus, Pleurotus ostreatus, Pteris bisporus and Agaricus bisporus, domestic edible fungus production enterprises and research units have started research as early as the beginning of this century, and achieved positive results . However, the production practice in the past ten years has shown that rice straw has not been widely used in the production of edible fungi, and a large amount of rice straw is still directly burned by local farmers, becoming the main source of air pollution. There are mainly four reasons: First, the biotransformation rate is low. The biotransformation rate of current achievements is only about 45-60%. Second, the unit output i...

AI Technical Summary

Problems solved by technology

However, the production practice in the past ten years shows that rice straw has not been widely used in the production of edible fungi, and a large amount of rice straw is still directly burned by local farmers, becoming the main source of air pollution.

There are mainly four reasons: one is that the biotransformation rate is low

The current biotransformation rate is only about 45-60%

Second, the unit output is low

Third, the efficiency of culture material fermentation technology is low

The current domestic fermentation technology, the degradation rate of cellulose, hemicellulose and lignin in rice straw is low

Fourth, the maturity of large-scale production technology is low

However, in the prior art, in terms of medium production, rice straw is used instead of miscellaneous sawdust to make compost for cultivating Pleurotus eryngii, and there are few reports at present.