Impact of surfactant type for ionic liquid pretreatment on enhancing delignification of rice straw. (March 2017)

• Record Type: Journal Article
• Authors: Chang, Ken-Lin; Chen, Xi-Mei; Wang, Xiao-Qin; Han, Ye-Ju; Potprommanee, Laddawan; Liu, Jing-yong; Liao, Yu-Ling; Ning, Xun-an; Sun, Shui-yu; Huang, Qing
• Is Part Of: Bioresource technology. Volume 227(2017)
• Page Start: 388
• Page End: 392
• Publication Date: 2017-03
• Subjects: Pretreatment -- Surfactant -- Ionic liquid -- Enzymatic hydrolysis; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2016.11.085
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Compared with different types of surfactant combined with IL pretreatment. The highest cellulose conversion was obtained with IL + bio-surfactant pretreatment. Improved the hydrophilic ability by IL + bio-surfactant pretreatment. IL + bio-surfactant is an effective and environmental pretreatment for rice straw. Abstract: This work describes an environmentally friendly method for pretreating rice straw by using 1-Allyl-3-methylimidazolium chloride ([AMIM]Cl) as an ionic liquid (IL) assisted by surfactants. The impacts of surfactant type (including nonionic-, anionic-, cationic- and bio-surfactant) on the ionic liquid pretreatment were investigated. The bio-surfactant + IL-pretreated rice straw showed significant lignin removal (26.14%) and exhibited higher cellulose conversion (36.21%) than the untreated (16.16%) rice straw. The cellulose conversion of the rice straw pretreated with bio-surfactant + IL was the highest and the lowest was observed for pretreated with cationic-surfactant + IL. Untreated and pretreated rice straw was thoroughly characterized through SEM and AFM. In conclusion, the results provided an effective and environmental method for pretreating lignocellulosic substrates by using green solvent (ionic liquid) and biodegradable bio-surfactant.