Causes of contamination of Edible Fungi

1. The sanitary condition of the production site is poor, and the pollution sources are not dealt with properly in time, resulting in a large amount of miscellaneous bacteria, and the spores of miscellaneous bacteria spread with wind, water, insects, rats and other media.

two。 Incomplete sterilization: high pressure (atmospheric pressure) sterilization equipment does not meet the requirements; does not reach the prescribed sterilization temperature or time; too much and too tight loading affects the sterilization effect.

3. Improper operation of inoculation: disinfection of inoculation room (box) is not strict; inoculation utensils carry bacteria; operators are not skilled.

4. Packaging damage: strain bottles (or bags) are damaged, trachoma, tight sealing, cotton plugs and other seals are damp.

(3) Prevention and control methods

Aiming at the causes of pollution

1. Do a good job in environmental hygiene and establish a regular system of environmental disinfection.

two。 Choose fresh and unmoldy raw materials. The raw materials were pre-piled and fermented. Mix with Zhenlin brand biological agent Auricularia auricula death regeneration insect repellent.

3. Overhaul sterilization equipment. Sterilization and inoculation operations shall be carried out in strict accordance with the requirements.

4. Manage the environmental conditions such as temperature, humidity and ventilation in the mycelium culture stage to avoid the occurrence and spread of miscellaneous bacteria caused by high temperature and humidity and poor ventilation.

5. Check frequently, find early and eliminate contaminated bottles (bags) in time. Properly dispose of the contaminated waste, take corresponding measures to reduce pollution, and adhere to the principle of prevention first.