Characterization of oxalic acid pretreatment on lignocellulosic biomass using oxalic acid recovered by electrodialysis

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논문

Characterization of oxalic acid pretreatment on lignocellulosic biomass using oxalic acid recovered by electrodialysis

학술지

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

저자명

Lee, H.J.; Seo, Y.J.; Lee, J.W.

초록

The properties of pretreated biomass and hydrolysate obtained by oxalic acid pretreatment using oxalic acid recovered through electrodialysis (ED) were investigated. Most of the oxalic acid was recovered and some of the fermentation inhibitors were removed by ED. For the original hydrolysate, the ethanol production was very low and fermentable sugars were not completely consumed by Pichia stipitis during fermentation. Ethanol yield was less than 0.12g/g in all stage. For the ED-treated hydrolysate, ethanol production was increased by up to two times in all stages compared to the original hydrolysate. The highest ethanol production was 19.38g/l after 72h which correspond to the ethanol yield of 0.33g/g. Enzymatic conversion of the cellulose to glucose for all the pretreated biomass was in the range of 76.03 and 77.63%. The hydrolysis rate on each pretreated biomass was not significantly changed when oxalic acid recovered by ED was used for pretreatment.

발행연도

2013

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

133

페이지

pp.87-91

DOI

10.1016/j.biortech.2013.01.051