The Differences of Bioethanol Level as The Result of Ragi Tape Fermentationin Various Doses from Vegetables and Fruits Wastes

Nur Hasanah, Siti Zaenab, Ainur Rofieq

Abstract


Abstract Bioethanol is ethanol derived from biological sources. It is one of the biofuels in form of biochemical liquid from the process of sugar fermentation which come from carbohydrate sources by using microorganisms. The raw materials used in the production of bioethanol are materials which contains carbohydrates. Frequently, bioethanol used as a solvent, germicides, drinks, antifreeze materials, fuel, and for the synthesis of other organic compounds. This study aims at determiningthe differences of bioethanol level as the result of ragi tape fermentation in various doses from vegetables and fruits wastes. Waste used was vegetable waste that consisted of carrots and potatoes, and fruits wastes that consisted of apples and bananas. Those wastes contained enough carbohydrates, thus it can be used as raw material for bioethanol production. The research used true experimental research.The research conducted at the Laboratory of Chemistry, University of Muhammadiyah Malang on October 15-23, 2014. The research design used was a Completely Randomized Block Design which consisted of 3 treatments and 4 replications of ragi tape doses were 5%, 10% and 15%, and the fermentation process is done for 7 days. The data analysis used analysis of variance random blocks and different test real distance Duncan at 5% level. The results showed that there were differences between the groups of wastes toward bioethanol. Waste which produces the highest bioethanol is apple wastes with 15% of ragi tape doses.

Keywords


Bioethanol; Fermentation;Vegetables and fruits waste;Ragi Tape

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