摘要
通过对堆肥材料内微生物菌群的连续筛选与驯化,获得高效、稳定纤维素降解菌群,并对其生长特性和降解能力进行了研究,结果表明:降解菌群生长迅速,培养第7天即可达到生长平台期;菌群纤维素酶活性在1～7 d内逐步增加,第7天的酶活性最高;降解菌群对不同纤维素材料的纤维素酶活性差异较大,初始pH值低有利于降解菌群酶活性的提高,其中初始pH值为4.0时的纤维素酶活性最高,为86.54 U。
The high-efficient and stable cellulose-degrading microbial flora was obtained by the continuous selection and domestication on the microorganism flora in composting materials,then a set of experiments were conducted to study its growth property and cellulose-degrading ability.The results showed that the cellulose-degrading community grew fast and reached stable stage after 7 days＇ culture;the cellulose enzyme activity of cellulose-degrading microbial flora increased from the 1st day to the 7th day,and it reached the highest level on the 7th day;the cellulose-degrading microbial flora had greatly different cellulose enzyme activity to different cellulosic materials,and the initial lower pH-value was better for increasing the cellulose enzyme activity of cellulose-degrading microbial flora,when initial pH-value was 4.0,the cellulose enzyme activity was the highest,being 86.54 U.
出处
《江西农业学报》
CAS
2012年第3期156-157,162,共3页
Acta Agriculturae Jiangxi
基金
苏州市农业科学院基金项目(SZJJ1103)
关键词
纤维素
降解菌群
纤维素酶
PH值
Cellulose
Cellulose-degrading microbial flora
Cellulose enzyme
pH-value
