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油菜秸秆含有大量木质纤维素,该类物质结构稳定,不易降解,限制了其工业化应用。通过对10株包括细菌、酵母菌和白腐真菌的菌株产酶能力和特性进行比较,并进行共同培养试验,筛选出5株可共同生长的木质纤维素降解菌BS09、BL、PC、TS和KS。通过对这5个菌株单独发酵降解油菜秸秆的能力考察,结果表明:PC对木质纤维素的降解能力最强,其木质素降解率达到16.5%,纤维素和半纤维素降解率也达到了22.7%和20.3%;BS09和BL对纤维素和半纤维素降解效果较为明显,纤维素和半纤维素降解率分别达到19.5%、15.0%和16.0%、22.1%。
Rape stalks contain a large amount of lignocellulose, which has stable structure and is not easily degraded, which limits its industrial application. Five strains of co-growing lignocellulosic degrading bacteria, BS09, BL, PC, TS, were screened by comparing their ability to produce enzymes with 10 strains including bacteria, yeast and white rot fungi. KS. The results showed that the degradability of lignin was 16.5% and the degradation rate of cellulose and hemicellulose was 22.7 % And 20.3%, respectively. The degradation of cellulose and hemicellulose by BS09 and BL was more obvious. The degradation rates of cellulose and hemicellulose were 19.5%, 15.0% and 16.0% and 22.1% respectively.