펄프종이기술 (Journal of Korea Technical Association of The Pulp and Paper Industry)

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
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알칼리 전처리가 굴참나무의 효소 당화에 미치는 영향

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

  • 윤수영 (충북대학교 목재종이과학과) ;
  • 신수정 (충북대학교 목재종이과학과)
  • Yoon, Su Young (Department of Wood and Paper Science, Chungbuk National University) ;
  • Shin, Soo-Jeong (Department of Wood and Paper Science, Chungbuk National University)
  • 투고 : 2014.10.21
  • 심사 : 2014.12.05
  • 발행 : 2014.12.30
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초록

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 $90^{\circ}C$ 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 $90^{\circ}C$, 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.

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