Pilot-scale steam explosion for xylose production from oil palm empty fruit bunches and the use of xylose for ethanol production

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논문

Pilot-scale steam explosion for xylose production from oil palm empty fruit bunches and the use of xylose for ethanol production

학술지

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

저자명

Duangwang, S.; Ruengpeerakul, T.; Cheirsilp, B.; Yamsaengsung, R.; Sangwichien, C.

초록

Pilot-scale steam explosion equipments were designed and constructed, to experimentally solubilize xylose from oil palm empty fruit bunches (OPEFB) and also to enhance an enzyme accessibility of the residual cellulose pulp. The OPEFB was chemically pretreated prior to steam explosion at saturated steam (SS) and superheated steam (SHS) conditions. The acid pretreated OPEFB gave the highest xylose recovery of 87.58+/-0.21g/kg dried OPEFB in the liquid fraction after explosion at SHS condition. These conditions also gave the residual cellulose pulp with high enzymatic accessibility of 73.54+/-0.41%, which is approximately threefold that of untreated OPEFB. This study has shown that the acid pretreatment prior to SHS explosion is an effective method to enhance both xylose extraction and enzyme accessibility of the exploded OPEFB. Moreover, the xylose solution obtained in this manner could directly be fermented by Candida shehatae TISTR 5843 giving high ethanol yield of 0.30+/-0.08g/g xylose.

발행연도

2016

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

203

페이지

pp.252-258

DOI

10.1016/j.biortech.2015.12.065