堆肥生境来源细菌降解木质纤维素制备腐殖质的研究  

Production of Humus Through Degradation of Lignocellulose by Bacteria from Compost Habitat

作　　者：姚红叶 李银忠 陆国彪 秦国川 李群良[1] YAO Hongye;LI Yinzhong;LU Guobiao;QIN Guochuan;LI Qunliang(School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《化学与生物工程》2024年第7期56-59,共4页Chemistry & Bioengineering

基　　金：大学生创新创业训练计划校级项目(202210593898)。

摘　　要：微生物降解木质纤维素具有清洁、高效、成本低、操作简单等优点。对从堆肥中筛选出的木质纤维素降解细菌(枯草芽孢杆菌LY60、地衣芽孢杆菌A65)进行20 d的单菌株液态腐殖化实验,探究了腐殖化过程中纤维素、木质素、腐殖质(胡敏酸、富里酸)的变化。结果表明,枯草芽孢杆菌LY60、地衣芽孢杆菌A65均能降解木质纤维素制备腐殖质,其中地衣芽孢杆菌A65在降解木质纤维素方面表现更优,纤维素、木质素的降解率分别为23.59%、31.86%,为利用木质纤维素制备腐殖质提供了借鉴。Microbial degradation of lignocellulose has the advantages of clean,efficient,low cost,and simple operation.We screened the lignocellulose-degrading bacteria(Bacillus subtilis LY60 and Bacillus licheniformis A65) from the compost,and carried out liquid humification experiment of a single strain for 20 d to explore the changes of cellulose,lignin,and humus(humic acid and fulvic acid) during the humification process.The results show that both Bacillus subtilis LY60 and Bacillus licheniformis A65 can degrade lignocellulose to produce humus,and Bacillus licheniformis A65 has a better performance in degradation of lignocellulose.The degradation rates of cellulose and lignin can reach 23.59% and 31.86%,respectively.The study provides a reference for the production of humus by lignocellulose.

关 键 词：腐殖化 细菌筛选 木质纤维素降解 腐殖质 

分 类 号：TQ352[化学工程] X712[环境科学与工程—环境工程]