化学
竹子
生物转化
酶水解
纤维素
醋酸
过氧化氢
水解
纤维素乙醇
纤维素酶
木糖
生物燃料
有机化学
核化学
生物技术
材料科学
发酵
复合材料
生物
作者
Fanyang Meng,Haiyan Yang,Zhengjun Shi,Ping Zhao,Jing Yang
标识
DOI:10.1016/j.biortech.2022.127321
摘要
Bamboo pretreatment with alkaline deacetylation-aided hydrogen peroxide-acetic acid (HPAC-NaOH) was investigated for producing high-value-added products. Comparing with HPAC pretreated D. sinicus, the post-treatment of alkaline deacetylation resulted in higher glucose yield of 91.3% and ethanol concentrations of 17.20 g/L, increased by about 20-27%. A strong negative correlation between the content of acetyl with cellulose accessibility and enzymatic hydrolysis yield was showed. The deacetylation of HPAC-DS contributed to the increase of cellulase adsorption capacities in substrates and the variations of hydrophilicity, cellulose crystallinity, and degree of polymerization, which can generate highly reactive cellulosic materials for enzymatic saccharification to produce bioethanol. The HPAC-NaOH pretreatment can provide a promising approach to improve the bioconversion of bamboo to biofuels, and has broad space for the biorefinery of bamboo in the south of China.
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