近几年来,我们在从事食用菌菌种生产过程中,常遇杂菌污染,增加了生产成本,其污染原因及防治措施如下:(一)原料的选择。原料往往是第一污染源,因此,配料前一定要选择新鲜、无霉变的优质原料。如果用的是霉变原料,必须首先将原料放阳光下暴晒2—3天,同时还必须延长灭菌时间。(二)灭菌不彻底。这主要有两个方面 In recent years, we engaged in edible fungus species in the production process, often encounter bacteria contamination, increasing the cost of production, the causes of pollution and prevention measures are as follows: (A) the choice of raw materials. Raw materials are often the first source of pollution, therefore, must be selected before the ingredients fresh, moldy and high quality raw materials. If you are using moldy raw materials, the raw materials must first be exposed to the sun 2-3 days, but also must extend the sterilization time. (B) sterilization is not complete. This mainly has two aspects