期刊论文

Aromatic benzene derivatives decomposed from lignin by wood decay fungi

中文

化工进展

1000-6613

2015

A01

173-177

31170521:国家自然科学基金 2013M531787:中国博士后科学基金 2013RS4035:湖南省科技计划

本校为第一机构

对2种木材腐朽真菌降解木质素为一系列苯系芳香类化学品进行了初步研究,并与黄孢原毛平革菌进行了比较。从木材腐朽土壤样品中分离获得具有降解木质素活性的真菌11株,将其中活性最强的菌株ZS1与ZSH用于降解工业碱木质素与中性木质素。通过发酵条件的优化、降解产物种类与浓度的 HPLC分析,结果发现,在初始底物浓度1.0~20.0g/L变化时,ZS1对碱木质素的降解率达到40.7%,比 ZSH 的大；而 ZSH 对中性木质素的降解率为32.3%,与黄孢原毛平革菌的降解能力相当,但比 ZS1的大些。木质素能被定向降解为香草酸、苯甲酸、香草醛、苯酚、紫丁香醛、苯、对甲基苯甲醚、对甲基苯乙醚、甲苯与对二甲苯等芳香类化学...

Compared with Phanerochaete chrysosporium Burdsall,a series of benzene aromatic chemicals derived from lignin decomposed by wood decay fungi were investigated.Eleven fungi with potency of degrading lignin were isolated from decay wood samples,and two of them with the highest degradation ability,ZS1 and ZSH,were used to biodegrade alkali lignin and neutral lignin.Through optimizing biodegradation condition and HPLC analysis of degraded products,it was found that,within initial concentrations of 1.0—20.0 g/L,at most 40.7% alkali lignin could be ...