Abstract

The different waste generated by farmers who produce pineapple, papaya and guineo produce large amounts of waste without proper treatment for them, with a fermentative process, bioethanol can then be obtained from all this type of waste in order to apply a distilation method. The present paper focuses on obtaining bioethanol from the wastes of three tropical fruits by fermentation using different percentages of yeast, An experimental Block Design was applied completely to Azar with a factorial arrangement A x B where factor A is equal to the types of fruits (papaya, guineo and pineapple), while factor B is equal to the three levels of yeast Saccharomyces cerevisiae (0%, 0.05% and 0.10%), The same that gives a total of 18 experimental units, various analyzes were carried out as: ° Brix, pH, turbidity, alcoholic degrees, acidity, specific density and heat; for the validation of the investigation, a combustion power analysis was carried out between a mixture of 10% ethanol and 90% gasoline. The results obtained indicate that the sample (yeast guineo 0.05%) showed better chemical and physical characteristics Brix (16.5), density (0.9834 g/cc), Specific heat (2.398 kJ/ kg), alcoholics (17.33 °GL), Acidity (0.820) being the best treatment for the production of bioethanol.

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