Method for fermenting paecilomyces hepialid by using Chinese yam as carbon source

The invention discloses a method for fermenting paecilomyces hepialid by using Chinese yam as a carbon source, which comprises seed liquid culture and fermentation culture, the fermentation culture temperature is 25-30 DEG C, the ventilation ratio is 1: (0.5-1.5) vvm, the tank pressure is 0.02-0.05 Mpa, Chinese yam is added into a fermentation culture medium, and the addition amount of the Chinese yam is 1-4%. By means of the method, the production efficiency and the product quality can be remarkably improved, the stable and high-content paecilomyces hepialid mycelium is obtained, and the exopolysaccharide content is high. 本发明公开了一种利用山药作为碳源发酵蝙蝠蛾拟青霉的方法，包括种子液培养和发酵培养，发酵培养温度为25～30℃，通风比为1：0.5-1.5vvm，罐压0.02-0.05Mpa，其中，发酵培养基中添加山药，山药添加量为1-4％。通过本发明方法能够显著提高生产效率及产品品质，得到稳定高含量的蝙蝠蛾拟青霉菌菌丝体，且胞外多糖含量高。