Impact of Alkali Pretreatment to Enzymatic Hydrolysis of Cork Oak (Quercus Variabilis)

Su Young Yoon; Soo-Jeong Shin

doi:10.7584/ktappi.2014.46.6.001

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2014 Vol.46, Issue 6 Next Page

Impact of Alkali Pretreatment to Enzymatic Hydrolysis of Cork Oak (Quercus Variabilis) 알칼리 전처리가 굴참나무의 효소 당화에 미치는 영향

30 December 2014. pp. 1-7

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Abstract

Dissolving part of xylan and lignin in lignocellulosic biomass by base can be used as pretreatment technique. Cork oak was pretreated with sodium hydroxide solution and the pretreatment effects were evaluated with two critical factors –NaOH concentration and pretreatment temperature. Some of xylan and lignin were removed by base pretreatment. At 90℃and 13% NaOH pretreatment, 22.0% of lignin and 78.8% of xylan removed by base treatment. Enzymatic hydrolysis of cork oak which was pretreated at higher temperature or concentration was further improved. After pretreatment of cork oak with 13% NaOH at 90℃, the conversion rate of cellulose to fermentable sugars were reached up to 91.3%. At ethanol fermentation with enzymatic hydrolysate from different pretreatment conditions, all enzymatic saccharification liquids were well fermented by Saccharomyces cerevisiae.

Keywords

Enzymatic saccharification

base pretreatment

sodium hydroxide

temperature

concentration

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 46
No :6
Pages :1-7
Received Date : 2014-10-21
Revised Date : 2014-12-03
Accepted Date : 2014-12-05
DOI :https://doi.org/10.7584/ktappi.2014.46.6.001

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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