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conferenceseries
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Volume 7, Issue 5 (Suppl)
J Biotechnol Biomater
ISSN: 2155-952X JBTBM, an open access journal
Biotechnology 2017
November 13-14, 2017
November 13-14, 2017 Osaka, Japan
19
th
World Congress on
Biotechnology
Utilization of yeast industry wastewater (YIW) as a fermentationmedium for the production of bioethanol
Muhannad I Massadeh and Mohammad Al-hamed
Hashemite University, Jordan
T
he utilization of yeast industry waste water (YIW) to produce ethanol by
Saccharomyces cerevisiae
was studied. Ethanol
production was investigated in batch liquid culture at different modes of operations after optimizing process parameters.
The maximum ethanol production after 48 hours was 41.86 g/l. The yeast growth ceased after 48 hours of fermentation as
CFU was declined and the sugar concentration was accumulated. In sequential production of ethanol in two stages bioreactor
system, the maximum ethanol production from the first stage was 42.87 g/l while the maximum ethanol production from the
second stage without sugar addition was 39.86 g/l. This scheme of production lasted for 10 days with a steady productivity
accomplishment. In conclusion, YIW is a promising substrate for the bio-ethanol production, with additional benefits of its use
regarding environmental and economic aspects.
massadeh@hu.edu.joJ Biotechnol Biomater 2017, 7:5 (Suppl)
DOI: 10.4172/2155-952X-C1-083