Innovative methods to generate clean sugar stream from biomass feedstocks for efficient fermentation.

Abstract:

:Sorghum stalks were evaluated to generate clean sugars; enzymatic hydrolysis efficiency of acid pretreated biomass was significantly low (12.3 g sugar/g pretreated biomass) compared to alkali method (49.1 g sugar/g pretreated biomass). Inhibitory compounds derived from acid pretreatment, such as hydroxymethyl furfural (HMF) and furfural, were effectively removed using an appropriate detoxification method using 1% (w/v) activated charcoal. The resin mixture containing cationic exchangers (DOWEX 50WX8) and anionic exchangers (IRA 743) in 7:3 ratio at pH 2.7 completely removed HMF, acetic acid and formic acid with less than 2% (w/w) sugar loss, leading to efficient detoxification of inhibitory compounds.

journal_name

Bioprocess Biosyst Eng

authors

Lee JE,Guragain YN,Bastola KP,Vadlani PV

doi

10.1007/s00449-016-1727-1

subject

Has Abstract

pub_date

2017-04-01 00:00:00

pages

633-641

issue

4

eissn

1615-7591

issn

1615-7605

pii

10.1007/s00449-016-1727-1

journal_volume

40

pub_type

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