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Position: Home > Articles > Influence of ~(60)Co-γ Irradiation on Enzymatic Hydrolysis Effect of Straw Hunan Agricultural Sciences 2012 (23) 15-18

~(60)Co-γ辐照对稻草酶解糖化效果的影响

作  者:
胡蝶;陈静萍;王克勤;陈亮
单  位:
湖南省核农学与航天育种研究所
关键词:
60Co-γ辐照;稻草;酶解糖化
摘  要:
采用不同剂量60Co-γ辐照预处理稻草秸秆,然后酶解糖化。结果表明,经400、800、1 200、1 600、2 000 kGy辐照处理的稻草酶解反应96 h后,聚糖转化率较对照分别提高了1.5、2.2、3.0、3.1、2.6倍。一定剂量的60Co-γ辐照导致稻草的纤维素和半纤维素含量降低和微观物理结构的破坏,这是使稻草酶解糖化效果改善的原因;而高剂量的60Co-γ辐照会降低酶解反应体系的pH,从而影响稻草的酶解糖化转化率。
译  名:
Influence of ~(60)Co-γ Irradiation on Enzymatic Hydrolysis Effect of Straw
作  者:
HU Die,CHEN Jing-ping,WANG Ke-qin,CHEN Liang(Institute of Nuclear Agricultural Science&Space Mutation Breeding,Changsha 410125,PRC)
关键词:
60Co-γ irradiation;straw;enzymatic hydrolysis
摘  要:
Using different doses of 60Co-γ to irradiation straw for pretreatment,then the enzymatic hydrolysis was conducted to pretreated straw.The results showed that in comparison with control,after enzymatic hydrolysis of 400,800,1 200,1 600 and 2 000 kGy of 60Co-γ pretreated straw for 96 h,the enzymatic digestibility increased by 1.5,2.2,3.0,3.1 and 2.6 times,respectively.A certain dose of 60Co-γ irradiation can reduce the contents of cellulose and hemicellulose in straw and destroy microcosmic physical structure of straw,thereby influencing the enzymatic digestibility of straw.

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