Production of bioactive polysaccharides by Inonotus obliquus under submerged fermentation supplemented with lignocellulosic biomass and their antioxidant activity
Production of bioactive polysaccharides by Inonotus obliquus under submerged fermentation supplemented with lignocellulosic biomass and their antioxidant activity
复制标题
DOI：
10.1007/s00449-014-1226-1
复制
发表时间：
2014-06
影响因子：
3.8
通讯作者：
Xiangqun Xu;Yan Hu;Lili Quan
中科院分区：
文献类型：
--
作者：
Xiangqun Xu;Yan Hu;Lili Quan
首次研究了麦草、稻草和甘蔗渣在深层发酵条件下降解木质纤维对桦褐孔菌胞外和胞内多糖(EPS)积累和抗氧化活性的影响。麦草、稻草和蔗渣分别比对照增加了91.4%、78.6%和74.3%的EPS积累量。三种木质纤维素基质的EPS和IPS提取物对羟基自由基和2，2-二苯基-1-苦基肼的清除活性显著高于对照基质。在三种材料中，麦草在促进菌丝体生长、积累和抗氧化活性方面效果最好。斜面多糖(PS)。在木质纤维原料发酵过程中，EPS和IPS提取物的碳水化合物和蛋白质含量以及单糖组成与糖组成和动态含量相关。促进培养物生物活性PS的积累。添加稻草、小麦秸秆和蔗渣的斜面效果明显。
The effect of lignocellulose degradation in wheat straw, rice straw, and sugarcane bagasse on the accumulation and antioxidant activity of extra- (EPS) and intracellular polysaccharides (IPS) ofInonotus obliquusunder submerged fermentation were first evaluated. The wheat straw, rice straw, and sugarcane bagasse increased the EPS accumulation by 91.4, 78.6, and 74.3 % compared with control, respectively. The EPS and IPS extracts from the three lignocellulose media had significantly higher hydroxyl radical- and 2,2-diphenyl-1-picrylhydrazyl radical-scavenging activity than those from the control medium. Of the three materials, wheat straw was the most effective lignocellulose in enhancing the mycelia growth, accumulation and antioxidant activity ofI. obliquuspolysaccharides (PS). The carbohydrate and protein content, as well as the monosaccharide compositions of the EPS and IPS extracts, were correlated with sugar compositions and dynamic contents during fermentation of individual lignocellulosic materials. The enhanced accumulation of bioactive PS of culturedI. obliquussupplemented with rice straw, wheat straw, and bagasse was evident.