Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production
The subject of this study was the effect of yeast extract and peptone on production of glucose and ethanol productivity from hydrolysed sago starch (HSS) (100 g/L) using Saccharomyces cerevisiae. Since there are none nitrogen content was observed in sago starch, thus supplementation of nitrogen so...
| Main Author: | |
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, (UNIMAS)
2016
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/15453/ http://ir.unimas.my/id/eprint/15453/1/Nur%20Hanisah.pdf http://ir.unimas.my/id/eprint/15453/4/Nur%20Hanisah.pdf |
| _version_ | 1848837856114507776 |
|---|---|
| author | Nur Hanisah, Amran |
| author_facet | Nur Hanisah, Amran |
| author_sort | Nur Hanisah, Amran |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The subject of this study was the effect of yeast extract and peptone on production of glucose and ethanol
productivity from hydrolysed sago starch (HSS) (100 g/L) using Saccharomyces cerevisiae. Since there are
none nitrogen content was observed in sago starch, thus supplementation of nitrogen sources in the media are
important. The method used was batch fermentation HSS with 100 mL initial volume with each was
supplemented with nitrogen sources (yeast extract and peptone) and was maintained at room temperature (30
'C ± 0.5). The initial pH was set around 5.5-5.6 and fermentation was conducted in incubator shaker for
24 hours. Commercial glucose was used as control sample to compare it with HSS. In comparison of
HSS with control sample, the gradual increase in dry cell weight of yeast can be observed in both
fermentation media when supplemented with nitrogen sources. Based on the result from the
experiment, yeast extract was proven to be the best nitrogen sources for ethanol'fermentation due to
high amount of ethanol produced (54.73 g/L) compared with peptone (14.27 g/L). Thus, the
supplementation of yeast extract is important to achieve fermentation efficiency (99.24%) in
fermentation of ethanol using HSS |
| first_indexed | 2025-11-15T06:46:18Z |
| format | Final Year Project Report / IMRAD |
| id | unimas-15453 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T06:46:18Z |
| publishDate | 2016 |
| publisher | Universiti Malaysia Sarawak, (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-154532024-02-09T04:56:34Z http://ir.unimas.my/id/eprint/15453/ Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production Nur Hanisah, Amran S Agriculture (General) The subject of this study was the effect of yeast extract and peptone on production of glucose and ethanol productivity from hydrolysed sago starch (HSS) (100 g/L) using Saccharomyces cerevisiae. Since there are none nitrogen content was observed in sago starch, thus supplementation of nitrogen sources in the media are important. The method used was batch fermentation HSS with 100 mL initial volume with each was supplemented with nitrogen sources (yeast extract and peptone) and was maintained at room temperature (30 'C ± 0.5). The initial pH was set around 5.5-5.6 and fermentation was conducted in incubator shaker for 24 hours. Commercial glucose was used as control sample to compare it with HSS. In comparison of HSS with control sample, the gradual increase in dry cell weight of yeast can be observed in both fermentation media when supplemented with nitrogen sources. Based on the result from the experiment, yeast extract was proven to be the best nitrogen sources for ethanol'fermentation due to high amount of ethanol produced (54.73 g/L) compared with peptone (14.27 g/L). Thus, the supplementation of yeast extract is important to achieve fermentation efficiency (99.24%) in fermentation of ethanol using HSS Universiti Malaysia Sarawak, (UNIMAS) 2016 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/15453/1/Nur%20Hanisah.pdf text en http://ir.unimas.my/id/eprint/15453/4/Nur%20Hanisah.pdf Nur Hanisah, Amran (2016) Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production. [Final Year Project Report / IMRAD] (Unpublished) |
| spellingShingle | S Agriculture (General) Nur Hanisah, Amran Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title | Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title_full | Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title_fullStr | Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title_full_unstemmed | Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title_short | Effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| title_sort | effects of yeast extract and peptone on hydrolysed sago stratch for bioethanol production |
| topic | S Agriculture (General) |
| url | http://ir.unimas.my/id/eprint/15453/ http://ir.unimas.my/id/eprint/15453/1/Nur%20Hanisah.pdf http://ir.unimas.my/id/eprint/15453/4/Nur%20Hanisah.pdf |