Efficient production of ethanol from empty palm fruit bunch fibers by fed-batch simultaneous saccharification and fermentation using Saccharomyces cerevisiae

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Title
Efficient production of ethanol from empty palm fruit bunch fibers by fed-batch simultaneous saccharification and fermentation using Saccharomyces cerevisiae
Author(s)
Jang Min Park; Baek Rock OhJeong-Woo Seo; Won-Kyung Hong; A Yu; Jung Hoon SohnChul Ho Kim
Bibliographic Citation
Applied Biochemistry and Biotechnology, vol. 170, no. 8, pp. 1807-1814
Publication Year
2013
Abstract
The concentration of ethanol produced from lignocellulosic biomass should be at least 40 g l-1 [about 5 % (v/v)] to minimize the cost of distillation process. In this study, the conditions for the simultaneous saccharification and fermentation (SSF) at fed-batch mode for the production of ethanol from alkali-pretreated empty palm fruit bunch fibers (EFB) were investigated. Optimal conditions for the production of ethanol were identified as temperature, 30 C; enzyme loading, 15 filter paper unit g-1 biomass; yeast (Saccharomyces cerevisiae) loading, 5 g l-1 of dry cell weight. Under these conditions, an economical ethanol concentration was achieved within 17 h, which further increased up to 62.5 g l-1 after 95 h with 70.6 % of the theoretical yield. To our knowledge, this is the first report to evaluate the economic ethanol production from alkali-pretreated EFB in fed-batch SSF using S. cerevisiae.
Keyword
Empty Palm Fruit Bunch Fiber (EFB)EthanolLignocellulosic BiomassPretreatmentSSF
ISSN
0273-2289
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s12010-013-0314-z
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Microbial Biotechnology Research Center > 1. Journal Articles
Division of Biomaterials Research > Synthetic Biology and Bioengineering Research Center > 1. Journal Articles
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