Dewaka Banana as an Alternative Energy Source

Abstract

Dewaka's banana grows well and abundant bananas production in Merauke area, but with a little bit sour taste when they're ripe made this bananas often the second choice compared to another kind of bananas. The research has been conducted to determine concentration of bioethanol produced from dewaka's banana flour. Banana flour was obtained from crused the slices of dried bananas. Then concentration of ethanol can then be identified through a series of tests in the laboratory. The results of gas chromatographic analysis show that dewaka banana can be used as an alternative energy source with bioethanol content of 83.43%. The concentration was result of 5 (five) days fermentation with yeast. The hydrolysis which is used was acid hydrolysis, using hydrochloric acid. The optimum concentration of hydrolysis was 1.5 N HCl, the optimum temperature was 90 0 C, whereas the optimum hydrolysis time was 70 minutes.

Modificated Extraction and Purity Test of Arenga Pinnata Gum

“…The total sugar content of sugar palm seed gum was 87.46% while galactose+mannose was 96.69%. The difference in levels is due to the need for optimization of glycosidic bond termination time on palm seed gum [7].…”

“…The same experiment was performed on blanks by substituting the sample solution with water. Next is calculated by the formula below [7].…”

“…Free monosaccharides will reduce alkaline solution of metal salts or oxides form becomes free. The unreduced Cu 2+ is then quantified by iodometric titration [7].…”

The potential of dewaka banana stems as raw materials for bioethanol

“…The results of the exploration of Edison, et al (1996; and Hermanto, et al (2013) stated that Dewaka bananas also grow in Maluku and Papua with different names such as boi bananas and jawaka bananas [2], [7]- [9]. However, Dewaka bananas grown in Merauke have a larger size and slightly sour fruit taste than in other places [10]. Its slightly sour taste has prompted some researchers to use Dewaka bananas as a substitute energy source.…”