Ansar, A (2021) Enhancement of bioethanol production from palm sap (Arenga pinnata (Wurmb) Merr) through optimization of Saccharomyces cerevisiae as an inoculum. Journal of Materials Research and Technology, 14 (1). pp. 548-554. ISSN 2238-7854
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Abstract
Availability of fossil fuels is increasingly limited, so the search for alternative fuels is important. In accordance with the current scenario, bioenergy research emphasizes the bioethanol production from plants that are abundant and available throughout the year, such as palm sap. The palm sap is a type of palm tree that grows in tropical forests, particularly in South Asia and Southeast Asia. More than 3,000 species of palm exist, and they are categorised as multipurpose trees because they can be used as raw materials for various products, such as sugar, fermented drinks, syrup, palm wine, vinegar, alcohol and bioethanol. This study was aimed to examine bioethanol production from palm sap through optimization of Saccharomyces cerevisiae as an inoculum. The research sample was obtained from local farmers in Pusuk, Lombok Island, West Nusa Tenggara, and Indonesia. The research parameters included the pH change, colour, and ethanol content. The results showed that the pH change of the palm sap during storage was caused by the growth of microorganisms to produce organic acids by releasing hydrogen ions. As pH decreased, L* and b* values also decreased significantly, but not significantly change in a* values was observed. Glucose changed to ethanol during fermentation. The higher the percentage of inoculum used, the higher the volume of ethanol obtained. The bioethanol content of palm sap prior to fermentation was 32.3%, and it increased to 75.6% after 24 hours of incubation.
| Item Type: | Article |
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| Keywords (Kata Kunci): | palm sap, bioethanol, fermentation, distillation, inoculum |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Fakultas Teknologi Pangan dan Agroindustri |
| Depositing User: | DR. ANSAR,S.Pd.,M.P.,M.Pd Fatepa |
| Date Deposited: | 24 May 2022 23:47 |
| Last Modified: | 24 May 2022 23:47 |
| URI: | http://eprints.unram.ac.id/id/eprint/28854 |
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