Ethanol fermentation with Kluyveromyces marxianus from Jerusalem artichoke grown in salina and irrigated with a mixture of seawater and freshwater

Journal of Applied Microbiology
W J YuanF W Bai

Abstract

To study fuel ethanol fermentation with Kluyveromyces marxianus ATCC8554 from Jerusalem artichoke (Helianthus tuberosus) grown in salina and irrigated with a mixture of seawater and freshwater. The growth and ethanol fermentation of K. marxianus ATCC8554 were studied using inulin as substrate. The activity of inulinase, which attributes to the hydrolysis of inulin, the main carbohydrate in Jerusalem artichoke, was monitored. The optimum temperatures were 38 degrees C for growth and inulinase production, and 35 degrees C for ethanol fermentation. Aeration was not necessary for ethanol fermentation with the K. marxianus from inulin. Then, the fresh Jerusalem artichoke tubers grown in salina and irrigated with 25% and 50% seawater were further examined for ethanol fermentation with the K. marxianus, and a higher ethanol yield was achieved for the Jerusalem artichoke tuber irrigated with 25% seawater. Furthermore, the dry meal of the Jerusalem artichoke tubers irrigated with 25% seawater was examined for ethanol fermentation at three solid concentrations of 200, 225 and 250 g l(-1), and the highest ethanol yield of 0.467, or 91.5% of the theoretical value of 0.511, was achieved for the slurry with a solid concentration of 200 g l(-...Continue Reading

References

Feb 6, 2004·Trends in Biotechnology·Henry R Bungay
Oct 13, 2006·Antonie van Leeuwenhoek·Antonius J A van MarisJack T Pronk
Oct 30, 2007·Biotechnology Advances·F W BaiM Moo-Young
Jan 1, 1984·Biotechnology and Bioengineering·D D RyuJ H Kim

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Citations

Dec 18, 2012·Biotechnology Letters·Lili LiSong Qin
Mar 12, 2015·Journal of Basic Microbiology·Fabiano Avelino GonçalvesGorete Ribeiro de Macedo
May 1, 2016·Journal of Industrial Microbiology & Biotechnology·Luz Ángela Galindo-LevaMarjorie A Jones
Jun 9, 2018·Biotechnology for Biofuels·Yibin QiuPingkai Ouyang
Jan 25, 2020·Nature Chemical Biology·Sarah ThorwallIan Wheeldon
Dec 7, 2018·Bioresource Technology·R S SinghChristian Larroche

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