黄孢原毛平革菌发酵稻草秸秆降解木质素的研究  

Degradation of Rice Straw Lignin by Phanerochaete Chrysosporium

作　　者：徐伟[1] 王金凤[1] 范洪臣[1] 梁金钟[1] 张帅[1] 朱姝[1] 由庆[1] 

机构地区：[1]哈尔滨商业大学食品工程学院,黑龙江哈尔滨150076

出　　处：《农产品加工（下）》2014年第11期10-12,16,共4页Farm Products Processing

基　　金：黑龙江教育厅资助项目(12511130)

摘　　要：研究利用黄孢原毛平革菌(Phanerochaete Chrysosporium Burdsall)对稻草秸秆进行固态发酵,在单因素基础上,通过正交试验得出稻草秸秆木质素的降解最优条件为6.5 g稻草,合成培养液12 m L,接种量0.8 m L(菌悬液浓度5×106CFU/m L),初始p H值4.5,测得木质素降解率为49.71%。采用扫描电镜SEM对发酵后10 d稻草表观形貌进行观察,结果清晰可见,发酵后稻草秸秆表面的空穴增多、增大,表面粗糙度增加,裂解现象明显。The paper investigates the degradation law of rice straw by Phanerochaete chrysosporium. The optimal processing conditions are obtained by orthogonal test as follows straw 6.5 g, synthetic medium 12 mL, inoculation amount 0.8 mL （cell density 5 × 106 CFU/mL） , pH 4.5. Under these conditions, the degradation rate of the lignin is 49.71%. The apparent morphology of straw has been observed under scanning electron microscope （SEM） . The results show that rice straw is degraded significantly and its surface hole in numbers and roughness increased.

关 键 词：稻草秸秆 黄孢原毛平革菌 木质素 SEM 

分 类 号：X71[环境科学与工程—环境工程]