Bioethanol Production from Agro Wastes by Acid Hydrolysis and Fermentation Process

Abstract

<span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:timesnewromanpsmt;="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-US">Agro wastes such as carrot peel, onion peel, potato peel and sugar beet peel are products <span style="font-size:11.0pt;mso-bidi-font-size:10.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:calibri;mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">subjected to saccharification process by <i>Penicillium sp.</i> for the hydrolysis, this process was followed by the fermentation using yeast <i>Saccharomyces cerevisiae </i>for the production of alcohol <span style="font-size:11.0pt;mso-bidi-font-size:10.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:timesnewromanpsmt;mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">which was fermented at 14, 21, 28 days to produce alcohol. The aim of the study was to determine alcohol content of fermented agro wastes based on different fermentation time. <span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa;mso-bidi-font-style:italic"="" lang="EN-US">The fermented product was purified by primary distillation process at 78⁰C and the fraction was collected. The ethanol was determined by dichromate method. <span style="font-size:11.0pt;mso-bidi-font-size:10.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">High yield of ethanol was obtained from sugar beet peel 14.52% on 28^th day and further confirmed by Gas chromatography and the yield of ethanol obtained on 28^th day was 17.3%.</span></span></span></span></span>