The solid state fermentation of lignin enzymes with steam exploded straw was studied. The results showed high lignin enzymes activity and productivity of Lip and MnP were 21.667 U/L h -1 and 11.458 U/L h -1 , respecti...The solid state fermentation of lignin enzymes with steam exploded straw was studied. The results showed high lignin enzymes activity and productivity of Lip and MnP were 21.667 U/L h -1 and 11.458 U/L h -1 , respectively. In media, the steam exploded straw might not only act as nutriments,but also inducement for lignin enzymes, and replace 3,4-dimethoxybenzyl alcohol. The optimum fermentation conditions could reduce the cost of lignin enzymes. The productivity of LiP and MnP were 21.667 U/L h -1 and 11.458 U/L h -1 , respectively. Fig 2, Tab 3, Ref展开更多
目前通过添加小分子介体物质(黎芦醇、草酸和锰离子等)促进木质素酶解的研究较少,文章研究了稻草固态发酵过程中这些介体物质对黄孢原毛平革菌分泌的木质素过氧化物酶和锰过氧化物酶降解木质素的影响.采用正交实验优化出可促进木质素酶...目前通过添加小分子介体物质(黎芦醇、草酸和锰离子等)促进木质素酶解的研究较少,文章研究了稻草固态发酵过程中这些介体物质对黄孢原毛平革菌分泌的木质素过氧化物酶和锰过氧化物酶降解木质素的影响.采用正交实验优化出可促进木质素酶解的介体物质浓度,并通过不同分析方法探讨木质素降解与促进剂之间的联系.实验结果表明,黎芦醇、草酸和锰离子对木质素的酶解存在不同程度的促进作用,在固态发酵过程中均可加速稻草的腐化.3种促进剂对木质素降解的影响顺序为草酸>Mn^(2+)>藜芦醇.此外,在不考虑促进剂相互作用的情况下,促进剂作用固态发酵的最佳浓度分别为藜芦醇0.12 m M·g^(-1)(稻草干重)、草酸0.06 m M·g^(-1)(稻草干重)、Mn^(2+)0.012 m M·g^(-1)(稻草干重).文章的研究可为木质素酶解技术的发展提供借鉴作用.展开更多
文摘The solid state fermentation of lignin enzymes with steam exploded straw was studied. The results showed high lignin enzymes activity and productivity of Lip and MnP were 21.667 U/L h -1 and 11.458 U/L h -1 , respectively. In media, the steam exploded straw might not only act as nutriments,but also inducement for lignin enzymes, and replace 3,4-dimethoxybenzyl alcohol. The optimum fermentation conditions could reduce the cost of lignin enzymes. The productivity of LiP and MnP were 21.667 U/L h -1 and 11.458 U/L h -1 , respectively. Fig 2, Tab 3, Ref
基金National Science Foundation of China(21477027,51609042)Science and Technology Projects of Guangdong province(2014A020216049)
文摘目前通过添加小分子介体物质(黎芦醇、草酸和锰离子等)促进木质素酶解的研究较少,文章研究了稻草固态发酵过程中这些介体物质对黄孢原毛平革菌分泌的木质素过氧化物酶和锰过氧化物酶降解木质素的影响.采用正交实验优化出可促进木质素酶解的介体物质浓度,并通过不同分析方法探讨木质素降解与促进剂之间的联系.实验结果表明,黎芦醇、草酸和锰离子对木质素的酶解存在不同程度的促进作用,在固态发酵过程中均可加速稻草的腐化.3种促进剂对木质素降解的影响顺序为草酸>Mn^(2+)>藜芦醇.此外,在不考虑促进剂相互作用的情况下,促进剂作用固态发酵的最佳浓度分别为藜芦醇0.12 m M·g^(-1)(稻草干重)、草酸0.06 m M·g^(-1)(稻草干重)、Mn^(2+)0.012 m M·g^(-1)(稻草干重).文章的研究可为木质素酶解技术的发展提供借鉴作用.