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Issue 3 (1) 2004 pp. 45-53
Katarzyna Szambelan, Jacek Nowak, Krystyna J. Chrapkowska
COMPARISON OF BACTERIAL AND YEAST ETHANOL FERMENTATION YIELD FROM JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.) TUBERS PULP AND JUICES
Abstract The fermentation of Jerusalem artichoke (Helianthus tuberosus L.) tubers and juices using various microorganisms: the bacterium Zymomonas mobilis, a distillery yeast Saccharomyces cerevisiae and a yeast with inulinase activity was investigated. Jerusalem artichoke carbohydrates in mashed tubers and juices were acid and enzymatic hydrolysed before fermentation by the bacterium and a distillery yeast. Although enzymatic hydroly-sis with an inulinase gave less reducing sugars it was significantly more efficient in fer-mentation process. The ethanol yield after enzymatic hydrolysis (expressed as % theoreti-cal yield) was 78.3-90.0% and 72.4-84.2% for the bacterium and yeasts respectively in tubers as well as 78.3-88.1% and 74.4-82.2% for the bacterium and yeasts in juices. The yield was 2.0-9.2% higher than after acid hydrolysis. The yeast with an active inulinase yielded better when juices were used for fermentation than on mashed tubers.
Keywords: Jerusalem artichoke, inulin hydrolysis, bacterium, yeast, ethanol yield
For citation:
MLA | Szambelan, Katarzyna, et al. "COMPARISON OF BACTERIAL AND YEAST ETHANOL FERMENTATION YIELD FROM JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.) TUBERS PULP AND JUICES." Acta Sci.Pol. Technol. Aliment. 3.1 (2004): 45-53. |
APA | Szambelan K.,Nowak J.,J. Chrapkowska K. (2004). COMPARISON OF BACTERIAL AND YEAST ETHANOL FERMENTATION YIELD FROM JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.) TUBERS PULP AND JUICES. Acta Sci.Pol. Technol. Aliment. 3 (1), 45-53 |
ISO 690 | SZAMBELAN, Katarzyna, NOWAK, Jacek, CHRAPKOWSKA, Krystyna J.. COMPARISON OF BACTERIAL AND YEAST ETHANOL FERMENTATION YIELD FROM JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.) TUBERS PULP AND JUICES. Acta Sci.Pol. Technol. Aliment., 2004, 3.1: 45-53. |