南京农业大学学报2009，Vol.32Issue(4)：148-153,6.
纤维素酶与木聚糖酶对象草青贮发酵品质的影响
Effects of cellulase and xylanase on the fermentation quality of elephant grass(Pennisetum purpureum Schumach.)silages during ensiling
摘要
Abstract
This experiment was carried out to investigate the effects of cellulase and xylanase on fermentation quality of elephant grass ( Pennisetum purpureum Schumach. ) silages during ensiling. Chopped elephant grass were ensiled in laboratory mini-silos either untreated ( control) or treated with cellulase (500 or 250 mg·kg~(-1) ) ,cellulase (250 mg·kg~(-1)) plus xylanase (250 mg· kg~(-1)) ,xylanase (500 or 250 mg·kg~(-1) ) ,respectively. Triplicate silos for each treatment were opened at 2,4,6,8, 15 and 30 days of ensiling with room temperature and analyzed for chemical characteristics. The enzyme treatments enhanced significantly production of lactic acid (P<0. 01) and water soluble carbohydrate (P<0.01) of silages,and reduced rapidly the pH value (P< 0. 01) compared with control. The contents of ammonia nitrogen in the enzymes treated silages,except for cellulase plus xylanase treated, was lower than in the untreated silage (P<0. 05 ). The contents of acetic acid were of no difference in all silages (P> 0. 05). The results suggested that the cellulase and xylanase improved the fermentation quality of elephant grass silage during ensiling.关键词
纤维素酶/木聚糖酶/象草/青贮Key words
cellulase/xylanase/Pennisetum purpureum Schumach. /ensiling分类
农业科技引用本文复制引用
庄苏,颜瑞,丁立人,王晓亮,王恬..纤维素酶与木聚糖酶对象草青贮发酵品质的影响[J].南京农业大学学报,2009,32(4):148-153,6.基金项目
农业部农业结构调整重大技术研究专项资助项目(20030901B) （20030901B）
