Abstract
Bioethanol obtained from microbial fermentation can replace conventional fossil fuels to satisfy energy demand. In this respect, a fermenting isolate of Saccharomyces cerevisiae, obtained from date juice, was grown in YEPD medium as a part of a previous published research project. In this study, the isolate was tentatively characterized for alcoholic fermentation in organic kitchen waste medium, prepared from discarded fruit and vegetable peels. Fermentation in shaking condition resulted in the production of 7.3% (v/v) ethanol after 48 h, after which the pH of the medium increased slightly in response. Further research should be conducted to assess the potential of kitchen waste as a raw material in ethanol fermentation.
Highlights
Kitchen waste is a raw material available in large volumes
HCl regulates the pH of the medium to control for bacterial contamination and facilitate chemical hydrolysis of plant residues, which were boiled for 1.5 h, giving carbohydrate units of cellulose and starch
The results indicated that the full potential of kitchen waste fermentation will be revealed through longer durations of fermentation
Summary
Kitchen waste is a raw material available in large volumes. Kitchen waste is mostly composed of lignocelluloses and starch, and is degradable through microbial infestation. An outstanding resource for biotechnology is present in kitchen waste as carbohydrate polymer fraction[1]. The usage of lignocelluloses as feedstock would prompt novel challenges for biotechnology, for example, the product diversification[2,3]. Kitchen waste extracted bioethanol is an alluring and sustainable energy source for vehicle fuel, as a gasoline alternative. Present ethanol production (so-called ‘first generation’), utilizing harvests such as sugar cane and corn, has become conventional method, whereas second-generation ethanol generation uses less expensive, non-sustenance feedstocks, for example, lignocelluloses or municipal solid waste, which could make ethanol more competitive alternative to petroleum[4,5]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
