Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process'
Continous fermentation of hydrolysed sago starch based on the 'Ishizaki process' was studied. Sago starch (20% DS) were hydrolyzed by the enzymes termamyl - 120L and dextrozyme to yield fermentable sugars at 97.6+0.6%. At a larger scale (50L), a reduction of hydrolysis yield to 62.5% was o...
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| Format: | Thesis |
| Language: | English |
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Universiti Malaysia Sarawak, (UNIMAS)
2011
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| Online Access: | http://ir.unimas.my/id/eprint/11814/ http://ir.unimas.my/id/eprint/11814/2/Lenny%20Anak%20Niyong.pdf |
| _version_ | 1848837074890784768 |
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| author | Lenny, Niyong. |
| author_facet | Lenny, Niyong. |
| author_sort | Lenny, Niyong. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Continous fermentation of hydrolysed sago starch based on the 'Ishizaki process' was studied. Sago starch (20% DS) were hydrolyzed by the enzymes termamyl - 120L and dextrozyme to yield fermentable sugars at 97.6+0.6%. At a larger scale (50L), a reduction of hydrolysis yield to 62.5% was observed. Batch ethanol fermentations using saccharomyces cerevisiae CSI-1 was studied, employing commercial glucose and various nitrogen sources (yeast extract, mieki and corn steep liquor). It was observed that yeast extract exhibited the highest fermentation efficiency at 98.4=0.2% compared to CSL (4% v/v) and Mieki (2% v/v) at 97.02= 1.05% and 93.0 = 1.1%, respectively. |
| first_indexed | 2025-11-15T06:33:53Z |
| format | Thesis |
| id | unimas-11814 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:33:53Z |
| publishDate | 2011 |
| publisher | Universiti Malaysia Sarawak, (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-118142023-03-06T08:10:38Z http://ir.unimas.my/id/eprint/11814/ Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' Lenny, Niyong. SB Plant culture Continous fermentation of hydrolysed sago starch based on the 'Ishizaki process' was studied. Sago starch (20% DS) were hydrolyzed by the enzymes termamyl - 120L and dextrozyme to yield fermentable sugars at 97.6+0.6%. At a larger scale (50L), a reduction of hydrolysis yield to 62.5% was observed. Batch ethanol fermentations using saccharomyces cerevisiae CSI-1 was studied, employing commercial glucose and various nitrogen sources (yeast extract, mieki and corn steep liquor). It was observed that yeast extract exhibited the highest fermentation efficiency at 98.4=0.2% compared to CSL (4% v/v) and Mieki (2% v/v) at 97.02= 1.05% and 93.0 = 1.1%, respectively. Universiti Malaysia Sarawak, (UNIMAS) 2011 Thesis NonPeerReviewed text en http://ir.unimas.my/id/eprint/11814/2/Lenny%20Anak%20Niyong.pdf Lenny, Niyong. (2011) Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process'. Masters thesis, Universiti Malaysia Sarawak, (UNIMAS). |
| spellingShingle | SB Plant culture Lenny, Niyong. Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title | Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title_full | Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title_fullStr | Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title_full_unstemmed | Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title_short | Continuous bioethanol production from fermentation of hydrolysed sago starch using the 'Ishizaki Process' |
| title_sort | continuous bioethanol production from fermentation of hydrolysed sago starch using the 'ishizaki process' |
| topic | SB Plant culture |
| url | http://ir.unimas.my/id/eprint/11814/ http://ir.unimas.my/id/eprint/11814/2/Lenny%20Anak%20Niyong.pdf |