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灰树花是药食两用真菌中的极品 ,灰树花多糖具有抗诱变、抗衰老、抑制肿瘤、激活免疫等功能 ,还能控制爱滋病的发展。通过液态深层发酵获得多糖产品是开发利用的方向。本试验研究营养因子对灰树花多糖发酵的影响 ,结果显示 :H2 0 菌株可利用多种碳氮源生长菌体和形成异多糖 ;以玉米淀粉、葡萄糖、蔗糖及酵母制品为营养源时 ,有利于菌体生长 ,其中玉米淀粉及酵母粉则有利于多糖合成 ;碳氮源浓度比碳氮比对发酵影响更大 ;在玉米淀粉 50 g/L、酵母粉 0 .5g/L时 ,菌体生物量及粗多糖产率分别可达 1 3 .6、 2 .2 4 g/L。
Grifola frondosa is the best in edible fungi, Grifola frondosa polysaccharides with anti-mutagenesis, anti-aging, tumor suppressor, activation of immune function, but also control the development of AIDS. Obtaining polysaccharide product through liquid deep fermentation is the direction of development and utilization. In this study, the effect of trophic factors on the polysaccharide fermentation of Grifola frondosa was studied. The results showed that: H 2 0 strains could utilize a variety of carbon and nitrogen sources to grow bacteria and form heteropolysaccharides; when corn starch, glucose, sucrose and yeast products were used as nutrient sources, Which is conducive to bacterial growth, of which corn starch and yeast are conducive to the synthesis of polysaccharides; carbon and nitrogen concentration of carbon and nitrogen than fermentation on the greater impact; corn starch 50 g / L, yeast powder 0.5g / L, the bacteria Body biomass and crude polysaccharide yields were up to 13.6, 2.24 g / L, respectively.