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Scale‐up batch fermentation of bioethanol production from the dry powder of Jerusalem artichoke ( Helianthus tuberosus L.) tubers by recombinant Saccharomyces cerevisiae
Author(s) -
Zou Shanmei,
Wang Yizhou,
He Meilin,
Deng Xiangyuan,
Wang Changhai
Publication year - 2016
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/jib.328
Subject(s) - jerusalem artichoke , helianthus , fermentation , brewing , ethanol fuel , biofuel , raw material , ethanol fermentation , food science , chemistry , ethanol , yield (engineering) , saccharomyces cerevisiae , botany , microbiology and biotechnology , yeast , biology , agronomy , biochemistry , materials science , sunflower , organic chemistry , metallurgy
This study is a first exploration of industrial bioethanol production from the dry powder of Jerusalem artichoke ( Helianthus tuberosus L.) tubers by recombinant S . cerevisiae 6525. Scale‐up fermentation of bioethanol production from the dry powder of Jerusalem artichoke tubers by recombinant Saccharomyces cerevisiae 6525 was carried out at the scale of 50 and 500 L agitating fermentors. For the 50 L fermentor, 85.67 g/L of ethanol was obtained within 72 h of fermentation, and the ethanol yield was 90.1%. For the 500 L fermentor, the highest ethanol concentration of 77.00 g/L was achieved at 84 h, and the ethanol yield was 81.01%. These results indicated that a relatively high yield of ethanol could also be obtained from a scaled‐up fermentation of Jerusalem artichoke powder. Thus, it may be feasible to use a Jerusalem artichoke tuber feedstock to carry out ethanol fermentations using the recombinant S . cerevisiae 6525 for industrial production. Copyright © 2016 The Institute of Brewing & Distilling