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OALib Journal期刊
ISSN: 2333-9721
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一株选择性降解木质素菌的筛选及其对玉米秸秆的降解
DOI: 10.3724/SP.J.1145.2009.00427, PP. 427-431
Keywords: 白腐菌,玉米秸秆,选择性降解,木质素,纤维素,紫外光谱,红外光谱
Abstract:
摘要以玉米秸秆为基质，对15株白腐真菌进行了初步筛选，从中获得一株选择性系数较高的菌株y10，经its-5.8srdna序列分析，初步鉴定为cerrenasp.，并研究了该菌在30d培养期内降解玉米秸秆中木质纤维素的情况.结果表明，菌株y10对玉米秸秆中木质素和半纤维素的降解速率明显高于纤维素；在30d的培养过程中，该菌对玉米秸秆降解的选择性系数都大于1，d15选择性系数最高为3.88.紫外光谱和红外光谱分析结果表明，经菌株y10降解后玉米秸秆的化学成分发生了变化，且对木质素的降解程度要大于对纤维素的降解程度.图4表3参17
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