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Production of bioethanol from tapioca starch using saccharomyces serevisiae : effect of inoculum concentration and temperature

Muhd Bashori, Abu Bakar (2008) Production of bioethanol from tapioca starch using saccharomyces serevisiae : effect of inoculum concentration and temperature. Faculty of Chemical & Natural Resources Engineering , Universiti Malaysia Pahang.

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Abstract

The inoculum concentration of Saccharomyces cerevisiae yeast and the temperature on ethanol production were studied. The optimum conditions of starch hydrolysis such as substrate and enzymes concentration, pH and the time required for the enzymatic action were fixed during the entire process study. The two-step enzymatic hydrolysis of tapioca by commercially available α-amylase and glucoamylase were employed. The fermentation process was run in 250 mL shake flasks. Based on the results, the highest yield of ethanol was 20.7 wt% which was produced at 36°C for the effect of temperature study. However, for inoculum concentration study, at 20% (v/v), the yield of ethanol was 21 wt% which was the highest.

Item Type: Undergraduates Project Papers
Additional Information: For FULL TEXT, email umplibrary.ir@gmail.com Project paper (Bachelor of Chemical Engineering (Biotechnology) ) --- Universiti Malaysia Pahang - 2008
Uncontrolled Keywords: Alcohol Biomass chemicals
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs. Nor Ashikin Ahmad
Date Deposited: 13 Dec 2010 07:45
Last Modified: 03 Mar 2015 07:48
URI: http://umpir.ump.edu.my/id/eprint/1066
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