A new magnesium bisulfite pretreatment (MBSP) development for bio-ethanol production from corn stover

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논문

A new magnesium bisulfite pretreatment (MBSP) development for bio-ethanol production from corn stover

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Yu, H.; Ren, J.; Liu, L.; Zheng, Z.; Zhu, J.; Yong, Q.; Ouyang, J.

초록

This study established a new more neutral magnesium bisulfate pretreatment (MBSP) using magnesium bisulfate as sulfonating agent for improving the enzymatic hydrolysis efficiency of corn stover. Using the MBSP with 5.21% magnesium bisulfate, 170<SUP>o</SUP>C and pH 5.2 for 60min, about 90% of lignin and 80% of hemicellulose were removed from biomass and more than 90% cellulose conversion of substrate was achieved after 48h hydrolysis. About 6.19kg raw corn stover could produce 1kg ethanol by Saccharomyces cerevisiae. Meanwhile, MBSP also could protect sugars from excessive degradation, prevent fermentation inhibition formation and directly convert the hemicelluloses into xylooligosaccharides as higher-value products. These results suggested that the MBSP method offers an alternative approach to the efficient conversion of nonwoody lignocellulosic biomass to ethanol and had broad space for development.

발행연도

2016

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

199

페이지

pp.188-193

DOI

10.1016/j.biortech.2015.08.090