水解物
生物转化
绿色木霉
玉米秸秆
纤维素酶
化学
发酵
热稳定性
食品科学
酶
木质纤维素生物量
生物化学
稻草
柠檬酸
单细胞蛋白
水解
无机化学
作者
Nidhee Chaudhary,Monendra Grover
标识
DOI:10.1016/j.pep.2023.106324
摘要
Importance of biocatalytic reactions and biotransformations mediated by fungal enzymes has increased tremendously in various industries. Endoglucanase obtained from Trichoderma viride has been utilized for bioconversion of agrowastes; wheat straw (WS) and corn stover (CS) as biomass into citric acid and single cell protein (SCP) as value-added products. The enzyme was purified to apparent homogeneity with Mr:44.67 kDa; purification-fold, yield, specific activity to be 19.5-, 29.2%, and 150.4 Units.mg−1, respectively, with thermostability up to 70 °C. The enzyme showed a novel N-terminal peptide and its computational analysis revealed a conserved ‘SG’ amino acid sequence alike microbial cellulases. The experimental results have shown the potential of endoglucanase for the conversion of agrowastes; wheat straw (WS) and corn stover (CS) into citric acid, maximum yield (KgM−3) found in submerged (WS:50;CS:45) fermentation process. Single-cell protein (SCP) production in WS (68 KgM−3) hydrolysate was superior to both CS hydrolysate (60 KgM−3) and YEPD (standard medium) (58 KgM−3).
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