中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 高效纤维素分解菌复合系的筛选构建及其对秸秆的分解特性 农业环境科学学报 2005,24 (04) 173-177
Position: Home > Articles > Selection and Construction of Composting Consortia for Degrading Lignocellulose Efficiently and Its Capability of Straw Degradation Journal of Agro-Environment Science 2005,24 (04) 173-177

高效纤维素分解菌复合系的筛选构建及其对秸秆的分解特性

作  者：
牛俊玲;崔宗均;李国学;王伟东
单  位：
中国农业大学资源环境学院;中国农业大学农学与生物技术学院
关键词：
堆肥;纤维素分解菌;复合系;稻秸
摘  要：
选以高温期的堆肥样品为材料,经过多代淘汰及不同系之间的组配,最终筛选构建了一组木质纤维素分解菌复合系,在分别以滤纸、脱脂棉、稻秸和锯末为碳源时,该复合系对天然纤维素含量高的滤纸和脱脂棉分解活性强,对纤维素含量较低、木质素含量相对高的锯末分解率最低。对稻秸的分解试验结果表明,该复合菌系在发酵初期对可溶性糖和淀粉的分解利用率远远高于对纤维素和半纤维素的分解,在整个发酵过程中,稻秸重量的变化与发酵液的pH变化有很大的一致性,发酵前5d内复合系对纤维素的分解活性最高。到发酵结束时,纤维素和半纤维素含量分别降低了7.39%和43.76%,而木质素在整个发酵过程中几乎不分解。
译  名：
Selection and Construction of Composting Consortia for Degrading Lignocellulose Efficiently and Its Capability of Straw Degradation
作  者：
NIU Jun-ling1, CUI Zong-jun2, LI Guo-xue1, WANG Wei-dong2(1. College of Resources and Environmental Science, China Agriculture University, Beijing 100094, China; 2. College of Agriculture and Biotechnology, China Agriculture University, Beijing 100094, China)
关键词：
compost; cellulose degradation bacteria; composite microbial system; rice straw
摘  要：
A composite consortia with higher capacity of degrading lignocellulose were selected and constructed from different samples of high temperature stage in compost. It was obtained with the principle of compensation of acid and alkali, and by optimization and combination of different systems. The capability of cellulose degradation of microbial community was investigated with filter paper, absorbent cotton , rice straw and sawdust by the way of CMC-Na saccharogenic powder and gravimetry. The result showed that the composite microbial system could directly degrade carbon source with high native cellulose content (such as filter paper and cotton). By contrast that the degradation of sawdust was lower for it had higher content of lignin and lower cellulose. With the rice straw as the sole carbon source to test the degrading capacity, it showed that the microbial system could degrade dissolved sugar and starch more effectively than cellulose and hemicellulose at the initial stage of fermentation. In the first 3 days the content of dissolved sugar and starch reduced 58.5% and 30.44% respectively, and by the end of fermentation they reduced 72.91% and 47.85% respectively. During the whole period of fermentation, the changes of straw weight and pH of fermenting liquer are identical, and in the initial 5 days the microbial system has higher decomposing activity. By the end of fermentation, the contents of cellulose and hemicellulose reduced 7.39% and 43.76% respectively, while the lignin content had little change.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46