复合菌剂对玉米秸秆的生物降解作用

Multi-microorganisms for Cornstalk Biodegradation

摘要: 为了最大限度地降解农业废弃物玉米秸秆,本研究探讨复合菌剂对玉米秸秆的生物降解作用。采用国家标准中相关测定方法对玉米秸秆中的纤维素和木质素进行测定。结果表明,S-3菌株与白腐真菌复合得到的复合菌剂对玉米秸秆中的纤维素和木质素有很好的降解作用,其最佳降解玉米秸秆的条件为:S-3菌株与白腐菌复合配方为8:8,料水比为1:2.5,发酵温度为30℃,发酵时间为17 d。在此条件下,秸秆纤维素的降解率为:35.60%,木质素的降解率为:37.41%。

Abstract: To expedite the degradation of agricultural wastes, such as cornstalks,combinations of multiple species of microorganisms were applied for the fermentation.The National Standard Determination Methods on cellulose and lignin contents in cornstalk were used. It was found that the addition of equal parts of S-3 and the white rot fungi (in 8:8 ratio) as the inoculantto a substrate of one part of cornstalks mixed with 2.5 parts of water and allowing the mixture to ferment at 30℃ for 17 dayscould result in an optimal biodegradation of the waste material with a 35.60% degradation rate on celluloses and 37.41% on lignins.