Author : Anantveer Kailay
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (111 download)
Book Synopsis Production of Ethanol from Apple Pomace Using Saccharomyces Cerevisiae, Trichoderma Reesei and Myceliophthora Thermophila Fungi by : Anantveer Kailay
Download or read book Production of Ethanol from Apple Pomace Using Saccharomyces Cerevisiae, Trichoderma Reesei and Myceliophthora Thermophila Fungi written by Anantveer Kailay and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "In recent years, fuels from renewable sources have been gaining importance as an alternative to conventional fuels to reduce greenhouse gases and avail long term sustainability. Biofuels from fruit pomaces are gaining attention due to their richness in sugar content and their accessibility and low cost for the production of biofuels. The aim of this study is to provide a viable solution to the environmental problems caused by apple pomace waste through the optimization of bioethanol production from this available biomass. Two fungal strains, Trichoderma reesei, and Myceliophthora thermophila were used for saccharification of apple pomace and the sugars obtained from the saccharification process were fermented using the fungus Saccharomyces cerevisiae for the production of ethanol. The optimization steps for efficient saccharification were performed in order to study the significant factors such as temperature, moisture level, incubation time and the effect of supplementation of apple pomace with peptone as a nitrogen source. According to the results of the optimization process for saccharification, the highest values of sugar content were observed at a moisture content (wet basis) of 90% for M. thermophila and 85% for T. reesei. Based on the statistical analysis, the effect of temperature was not significant on sugar yield however the maximum yield was obtained at 28°C. 1% w/w peptone was found to be the most effective dose to increase the sugar yield for both the fungal strains tested for saccharification. The apple pomace treated with T. reesei and M. thermophila yielded 6.11 % (v/w) and 3.96% (v/w) amount of ethanol, respectively, after fermentation using S. cerevisiae. However, only 3.72% alcohol was obtained from the apple pomace treated with only S. cerevisiae as a control. Furthermore, the results revealed that using T. reesei with S. cerevisiae is an effective way for the production of bioethanol from apple pomace. Fermentation of apple sludge using S. cerevisiae was also carried out. Fermentation of apple filtered sludge resulted in 6.54% (v/w) amount of ethanol using S. cerevisiae and fermentation of unfiltered sludge with similar conditions resulted in 8.05% (v/w) of ethanol at 72 hours." --