纤维素乙醇
化学
木质素
原材料
水解
纤维素酶
丁酸
催化作用
多酚
有机化学
果胶
生物量(生态学)
制浆造纸工业
纤维素
食品科学
抗氧化剂
农学
生物
工程类
作者
Tianfu Wang,Qianru Zhao,Chengyang Li,Fei He,Ling Jiang,Haji Akber Aisa
标识
DOI:10.1016/j.scitotenv.2021.146095
摘要
Pomegranate peels are an abundant agricultural waste material with a high content of carbohydrates and bioactive compounds. The aim of this study was to efficiently convert waste pomegranate peels (WPP) into high-value-added products. First, high yields of phenolics (12.2%) and bioactive pectin (24.8%) were obtained via enzymatic pretreatment. The lignin was subsequently degraded using an integrated method combining heteropolyacids as catalyst and biomass-derived γ-valerolactone as sustainable solvent and cellulase-catalyzed hydrolysis. The optimal degradation conditions were found to encompass a temperature of 293 K, reaction time of 3 h and catalyst loading with 30 mM heteropolyacids. Under these conditions, the enzymatic hydrolysis efficiency was enhanced significantly, leading to a yield of 93.3% glucose from the obtained cellulosic feedstock. Finally, the fermentable sugars together with the previously recovered pectin from WPP were firstly used as carbon source to evaluate their suitability as feedstock for butyric acid production using Clostridium tyrobutyricum.
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