구.농수식품
- 조회334
Heeyoung Park1, Sang Un Park2, Byeong‐Kwan Jang1, Jeong Jae Lee3,*, Yong Suk Chung4,*
1School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
2Department of Crop Science, Chungnam National University, Daejeon, South Korea
3Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, South Korea
4Department of Plant Resources and Environment, Jeju National University, Jeju, South Korea
*Correspondence
Abstract
Kenaf (Hibiscus cannabinus) is an annual fiber crop grown mainly in India and China. This crop is becoming a new bio‐based energy source because of its fast growth rate, excellent CO2 absorption ability, and large productivity per unit area. In this study, we evaluated 10 different cultivars of kenaf for their potential as biomass for cellulosic ethanol production. First, kenaf samples were hydrolyzed using dilute sulfuric acid, which is the most simple and cost‐effective pretreatment method. Next, simultaneous saccharification and fermentation (SSF) of the hydrolysates were performed by wild‐type and engineered xylose‐fermenting yeast strains. The results of compositional analysis of the biomass, the hydrolysates, and the fermented products suggested that ethanol yield and productivity were significantly affected by a type of kenaf cultivars, which was not predictable based on the biomass compositions. Also, the ethanol production was maximized when the xylose fraction was utilized by engineered yeast under the control of pH to avoid acetate inhibition. Considering the sugar compositions and their fermentability, kenaf can be a promising energy‐dedicated crop for cellulosic ethanol production.
논문정보
- Research article
- 2021년 01월 (BRIC 등록일 2021-04-01)
- 국내 연구진
- 생명과학 > 식량작물 및 원예작물
- 구・농수식품
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