Cost-effective production of bioethanol from low-quality apples by using Saccharomyces cerevisiae
Cost-effective production of bioethanol from low-quality apples by using Saccharomyces cerevisiae
SAIMA AFTAB1, ATTIA HAMID1, MAHJBEEN2, JAVERIA TARIQ2, ZULQURNAIN ALI2, ASMA ZAFAR2*
SAIMA AFTAB1, ATTIA HAMID1, MAHJBEEN2, JAVERIA TARIQ2, ZULQURNAIN ALI2, ASMA ZAFAR2*
ABSTRACT
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Bioethanol production at the industrial level is engaged by various bacteria, yeast, and fungi. But Saccharomyces cerevisiae is the most commonly used yeast. Different substrates have been used for ethanol production such as sweat sorghum cane extract, lignocellulose, starch-based substrate and molasses, and other wastes. In this study low-quality apples were used for the production of ethanol that was further used for various purposes. From this work, it is clear that the maximum ethanol production is obtained from the apples. S. cerevisiae strain was used for the maximum conversion of sugar contents of apple extracts into ethanol. Different parameters like incubation time, temperature, pH and Inoculum size were optimized to get the maximum ethanol production that can be increased after further studies and proved to be a beneficial candidate for different applications. Maximum ethanol (13.9 %) was produced after inoculation was performed by S. cerevisiae (inoculum size 4%). The optimized conditions of apple extracts inoculated with S. cerevisiae at 30°C after 72 hours of incubation having pH of about 4.0.
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December 2021
Vol.67, Iss. 2, Pages 85-159
