AT-303:Comparison of Sago and Sweet Sorghum for Ethanol production using Saccharomyces Cerevisiae
There is a growing interest in the application of bioethanol as biofuel since it has the possibility to be the potential substitute for fossil fuel. Selection of the best raw material for ethanol production is crucial for the substrate preparation. High amount of starch content is one of the impo...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/25816/ http://irep.iium.edu.my/25816/1/%5BAT-303%5D_Mohd_Hider.pdf |
| Summary: | There is a growing interest in the application of bioethanol as biofuel since it has the
possibility to be the potential substitute for fossil fuel. Selection of the best raw material
for ethanol production is crucial for the substrate preparation. High amount of starch
content is one of the important criteria in choosing the best suitable crop for bioethanol
production. Two types of starchy crops, Sago and Sweet Sorghum are considered to
have a high potential as an energy crop. The two-step enzymatic hydrolysis of sago and
sweet sorghum were performed by commercially available α-amylase and glucoamylase
enzyme. Further ethanol batch fermentation by Saccharomyces cerevisiae strain from
the obtained hydrolysates of sago and sweet sorghum were studied. For both sago and
sweet sorghum, the hydrolysis and fermentation were done in a 2 L stirred tank
bioreactor, B-Braun fermenter, using the same process conditions. Each running was
completed within 72 hours. The amount of glucose obtained after hydrolysis process
was greater in sweet sorghum compared to sago, which are 50.07 and 48.7 g L-1,
respectively. The amount of ethanol concentration also higher for sweet sorghum
compared to sago at the 72 h fermentation process, which are 40.11 and 26 g L-1,
respectively. |
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