Title:
Comparative Assessment of Bio-Ethanol Production from Co-Cultures of Zymomonas Mobilis and Saccharomyces Cerevisiae
Author(s):
Singh, S., Rathva, H.K., Kaur, S., Chopra, C., Chopra, R.S.
Document(s):
Paper
Poster
Abstract:
Culturing two or more different populations of microorganisms at the same time in a medium is known as “co-culture”. This method is now being utilized to understand the synergistic relations between metabolic pathways of the strains cultured together. In the present study, Bio-ethanol produced co-culture was found to be significantly higher than standalone cultures of Zymomonas mobilis and Saccharomyces cerevisiae. Also, free culture was compared with immobilized cultures (on Calcium Alginate and Luffa) for bio-ethanol production. Maximum Bio-ethanol produced by Co-culture was 119.2µl/ml (through Luffa cylindrica) whereas in case of individual cultures of Zymomonas mobilis and Saccharomyces cerevisiae it was 112µl/ml and 93.4µl/ml (through Luffa acutangula). Luffa sponge was a better and cheaper substratum than Ca-alginate beads which indicated reduced cost of Bio-ethanol at Industrial level. Conversely, maximum Bio-ethanol yield from Luffa sponge was 119.2µl/ml (immobilized Co-culture) whereas in case of Ca-alginate it was 103.8µl/ml (for immobilized Co-culture). Both Luffa cylindrinca and Luffa acutangula can be used to immobilize co-cultures as both have almost same yield.
Keywords:
bioethanol, fermentation, immobilization, feedstock, production, co-culture
Topic:
Biomass Conversion Technologies for Energy Carriers, Chemicals and Materials
Subtopic:
Bio-alcohols from lignocellulosic biomass and pretreatment
Event:
27th European Biomass Conference and Exhibition
Session:
3CV.7.31
Pages:
1404 - 1407
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-3CV.7.31
Price:
FREE
