固体发酵生产冬虫夏草多糖的研究

Solid Fermentation Production of Cordyceps sinensis Polysaccharide

本研究以豆粕和米糠为固态培养基,固体发酵生产冬虫夏草多糖。通过对培养基组成配比、接种量、温度、培养基相对湿度、空气相对湿度和培养时间的研究,初步确定了在豆粕:米糠为1:2(W/W)固体培养基发酵生产冬虫夏草多糖的最佳条件为:接种量20%、温度26℃、培养基含水量为60%、空气相对湿度为60%和培养时间7d。经傅立叶红外光谱分析,本研究生产的冬虫夏草多糖为β-葡聚糖。

In this study, Cordyceps sinensis polysaccharide was prepared by solid fermentation with soybean meal and rice bran （1：2, W/W） as raw materials of medium. Through single-factor test, the optimum inoculation amount, fermentation temperature, water content of medium, air relative humidity and fermentation time are confirmed to be 20%, 26℃, 60%, 60% and 7 days, respectively. Fourier transform infrared spectroscopy analysis indicated that the Cordyceps sinensis polysaccharide is β-glucan.