Supplementation of mineral compounds in sago hampas hydrolysate for bioethanol production by saccharomyces cerevisiae
Bioethanol is one of the technologies developed by scientist with a possibility of replacing nonrenewable sources of energy. The bioavailability of metal ions in fermentation media are indeed important factors that influence yeast cell physiology and production of yeast fermentation products (Wal...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Year Project Report |
| Language: | English |
| Published: |
Universiti Malaysia Sarawak, (UNIMAS)
2013
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/8759/8/Supplementation%20of%20Mineral%20Compounds%20in%20Sago%20Hampas%20Hydrolysate%20For%20Bioethanol%20Production%20By%20Saccharomyces%20Cerevisiae.pdf http://ir.unimas.my/id/eprint/8759/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Bioethanol is one of the technologies developed by scientist with a possibility of replacing nonrenewable
sources of energy. The bioavailability of metal ions in fermentation media are indeed
important factors that influence yeast cell physiology and production of yeast fermentation
products (Walker et al., 2006).In this study, starchy lignocellulosic from agricultural waste which
is sago hampas hydrolysate (SHH) was used as substrate (carbon sources) for ethanol
fermentation by baker's yeast (Saccharomyces cerevisiae). The effect of mineral compounds on
the rate of fennentation and consequently the production of bioethanol was determined in order
to reduce unnecessary cost payout; which is important in large scale bioethanol production.
Three types of mineral compounds; magnesium, calcium and zinc were studied. The most
suitable metal ionic compound for supplementation of ethanol production from SHH was 0.4 giL
calcium and 0.8 giL magnesium. The production of bioethanol from SHH was carried out
through batch fermentation process by Saccharomyces cerevisiae at initial pH 5.5 to 5.6,
temperature of 30·C in 100 mL working volume. |
|---|