碱预处理稻草的酶解糖化OACSTPCD
Enzymatic Saccharification of Alkali Pretreated Rice Straw
在常温(28℃)下用稀硫酸、氢氧化钠、氨水、过氧化氢溶液处理稻草原料,以实际糖化率为衡量指标对预处理效果进行比较.结果表明2%氢氧化钠溶液预处理效果最好.稻草原料通过温和的碱预处理后,绝大部分木质素被去除,但仍然有超过一半的半纤维素残留.以康宁木霉(T. koningii)QF-02生产的复合酶比两种商品纤维素酶制剂能更有效酶解糖化碱预处理稻草.自制复合酶的最适温度和最适pH分别为50℃和4.8;考虑酶解效率和操作费用,酶解时间48 h、酶…查看全部>>
Dilute solutions of H2SO4,NaOH,ammonia and H2O2 were evaluated as pretreatment reagents for improving the enzymatic saccharification of rice straw at room temperature(28℃).The highest saccharification rate was achieved in the case of rice straw pretreated with 2%NaOH.Mild alkali pretreatment resulted in a majority removal of lignin,but higher than half of hemicellulose was remained in the material.The compound enzyme produced by T. koningii QF-02 Was more su…查看全部>>
邹水洋;肖凯军;邵友元;郭祀远
华南理工大学轻工与食品学院,广东,广州,510640东莞理工学院化学与环境工程学院,广东,东莞,523808华南理工大学轻工与食品学院,广东,广州,510640东莞理工学院化学与环境工程学院,广东,东莞,523808
生物科学
稻草预处理纤维素酶木聚糖酶酶解糖化
rice strawpretreatmentcellulasexylanaseenzymatic saccharification
《现代食品科技》 2009 (4)
411-415,427,6
东莞市科技计划项目(编号2008108101013)
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