IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473
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IJAIR NAAS Score : 3.99 (2016 - 2020)
"Submissions Open For Vol. 15, Issue 1, July - Aug., 2026"
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IJAIR NAAS Score : 3.99 (2016 - 2020)
"Submissions Open For Vol. 15, Issue 1, July - Aug., 2026"
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Effect of the Nitrogen Source on Bioethanol Production from Syrup Dates by Saccharomyces cerevisiae
- Sofien Chniti; Monia Jemni; Zeineb Ben Rejeb; Hédia Chaabane; Mnasser Hassouna; Abdeltif Amrane; Hayet Djelal
- Syrup resulting from byproducts of dates’ fruit (Phœnix dactylifera, L.) constitutes a favorable medium for ethanol production by Saccharomyces cerevisiae, according to its content in simple sugars. However, it is limited by its content in nitrogen and nutrients, and hence must be accordingly supplemented. Yeast extract and ammonium were therefore tested as nitrogen sources for ethanol fermentation from date syrup by S. cerevisiae. The results showed that both nitrogen sources promoted ethanol production efficiencies. Even if yeast extract appeared the most efficient nitrogen source if compared to the same amount of ammonium, the Duncan’s test showed no significant difference of the ethanol on sugar yields for broths enriched with NH4Cl (0.45 g g-1) and Yeast extract (0.51 g g-1), while the difference was significant in the case of an absence of enrichment (0.30 g g-1). Therefore and from an economical point of view, ammonium remains an interesting alternative. These results clearly indicate the high potential of date syrup supplemented with nitrogen for ethanol production by S. cerevisiae for subsequent industrial applications.
- Select Volume / Issue:
- Year:
- 2015
- Type of Publication:
- Article
- Keywords:
- Ethanol Fermentation; Saccharomyces cerevisiae; Nitrogen Sources; Date Syrup
- Journal:
- IJAIR
- Volume:
- 4
- Number:
- 3
- Pages:
- 530-535
- Month:
- November
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