Enzymatic hydrolysis of autohydrolyzed wheat straw followed by refining to produce fermentable sugars

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논문

Enzymatic hydrolysis of autohydrolyzed wheat straw followed by refining to produce fermentable sugars

학술지

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

저자명

Ertas, M.; Han, Q.; Jameel, H.; Chang, H.m.

초록

Wheat straw was pretreated using an autohydrolysis process with different temperatures (160-200oC) and times (10-20min) in order to allow the recovery of hemicellulose in the filtrate and help open up the structure of the biomass for improved accessibility of enzymes during enzymatic hydrolysis. Autohydrolysis at 190oC for 10min provided the highest overall sugar (12.2/100g raw wheat straw) in the autohydrolysis filtrate and recovered 62.3% of solid residue. Before enzymatic hydrolysis, the pulps obtained from each pretreatment condition were subjected to a refining post-treatment to improve enzyme accessibility. Enzymatic hydrolysis was performed for all the pretreated solids with and without refining post-treatment at the enzyme loadings of 4 and 10FPU/g oven dry substrate for 96h. A total of 30.4g sugars can be recovered from 100g wheat straw at 180oC for 20min with 4FPU/g enzyme charge.

발행연도

2014

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

152

페이지

pp.259-266

DOI

10.1016/j.biortech.2013.11.026