混合菌种对玉米秸秆降解作用的效果研究  

Study on Degradation of Corn Straw by Mixed Strains

作　　者：张敏[1] 刘庆玉[1] 来世鹏[2] 陈志丽[2] 张文基[1] 

机构地区：[1]沈阳农业大学工程学院,沈阳110161 [2]建设部沈阳煤气热力研究设计院,沈阳110026

出　　处：《沈阳农业大学学报》2011年第6期746-748,共3页Journal of Shenyang Agricultural University

基　　金：辽宁省博士启动基金计划项目(20101105);沈阳市科学技术计划项目(F10-232-4-00);沈阳农业大学青年教师科研基金项目(20081005)

摘　　要：为使秸秆更好的降解和利用,提高其生物降解效果,采用菌株S和菌株SN混合发酵处理玉米秸秆,结果表明:菌株S和菌株SN混合在同一个PDA平板上相互融合生长,菌落间无明显对峙状态,说明二者无拮抗现象。通过采用混合菌种对玉米秸秆在最优降解条件下的降解试验表明:混合菌种对玉米秸秆降解效果在25d时,达到53.2%,比出发菌株S木质素的降解率(50.73%)提高了4.87%,比出发菌株SN木质素降解率(47.6%)提高了11.76%,研究结果证明混合菌种的发酵效果要明显优于单一菌种的发酵。In order to degrade and utilize the corn straw, the strain sand SN were used in fermentation. The results showed that there was no antagonism between them. Strain S and SN were mixed to grow on PDA. Degradation experiment with mixed strains for cornstalk degradation under optimal condition reached 53.2% in 25d, compared with the original strain S （degradation rate 50.73%） the degradation rate increased by 4.87%, and compared with strain SN the degradation rate increased by 11.76%. The results showed the effect of mixture fermentation is better than single strain fermentation.

关 键 词：混合菌 玉米秸秆 木质素酶 木质素降解率 

分 类 号：S216[农业科学—农业机械化工程] Q815[农业科学—农业工程]