A mixture sample comprised of Corn,Red adzuki bean,brown rice served as substrate. After Inonotus obliquus solid fermentation,the content of total triterpenoid,Polyphenols and polysaccharides were measured respectively. Results show that,substrate fermentation achieved the best results under the right conditions that Corn,Red adzuki bean and brown rice were mixed together by crushing,screening through mesh size of 10. The content of polysaccharides,Polyphenols reached maximum 6.27 mg/g and 22.48 mg/g respectively,but good fer-mentation effect resulted in high polysaccharides consumption. At this point ,the content of polysaccharides of the substrate was the lowest,10.57 mg/g. Corn can improve the growth of Inonotus obliquus much more than brown rice.%以糙米、玉米和红小豆组成混合物为基质，用桦褐孔菌固体发酵并对产物中总三萜、多酚和多糖进行测定。结果表明：玉米、红小豆和糙米等混合物经粉碎过10目筛后的基质发酵效果最好，总三萜和多酚含量分别达到最大值6.27 mg/g和22.48 mg/g，发酵效果好导致多糖消耗大，此时基质中多糖含量最低为10.57 mg/g；玉米相比糙米更能促进桦褐孔菌生长。
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