Enhanced saccharification of lignocellulosic biomass by pretreatment with quaternary ammonium hydroxide. Issue 12 (25th September 2014)

• Record Type: Journal Article
• Authors: Zhong, Chao; Wang, Chunming; Wang, Fengxue; Jia, Honghua; Wei, Ping; Zhao, Yin
• Is Part Of: Journal of chemical technology & biotechnology. Volume 90:Issue 12(2015:Dec.)
• Page Start: 2186
• Page End: 2194
• Publication Date: 2014-09-25
• Subjects: Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.4530
• Languages: English
• ISSNs: 0268-2575

Abstract

<abstract abstract-type="main" id="jctb4530-abs-0001"> <title>Abstract</title> <sec id="jctb4530-sec-0001" sec-type="section"> <title>BACKGROUND</title> <p id="jctb4530-para-0001">As one of the most abundant natural resources, lignocellulosic biomass is usually utilized at low efficiencies because of its complicated structure and poor degradability, and pretreatments prior to utilization are therefore considered necessary. To overcome the disadvantages of traditional pretreatments for lignocellulosic biomass, a method based on the application of quaternary ammonium hydroxide was investigated.</p> </sec> <sec id="jctb4530-sec-0002" sec-type="section"> <title>RESULTS</title> <p id="jctb4530-para-0002">Remarkable structural transformation and compositional changes were detected in pretreated biomass, presenting significant removal of lignin and decreased cellulose crystallinity, which could contribute to enhanced degradability. Significant factors in this process were investigated by single‐factor experiment and response surface methodology, and optimum conditions were calculated as: reaction time 7.0 h, temperature 51.6 °C, and concentration of solvent 16.8%. Biomass pretreated under these conditions presented a maximum saccharification yield of 73.71%, which was a 3‐fold increase compared with the untreated sample. In addition, the solvent quaternary ammonium hydroxide was recycled five times for biomass pretreatment with high activity retained.</p> </sec> <sec id="jctb4530-sec-0003" sec-type="section"> <title>CONCLUSIONS</title> <p id="jctb4530-para-0003">Enhanced saccharification efficiency of lignocellulosic biomass was achieved by pretreatment with quaternary ammonium hydroxide. © 2014 Society of Chemical Industry</p> </sec> </abstract>