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All Journal Journal of Biobased Chemicals (JOBC)
Aina Christalia Rinastiti
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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Journal : Journal of Biobased Chemicals (JOBC)

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Effect of Time, pH, and Yeast Concentration on Bioethanol Levels in the Ulva sp. Fermentation Process Aina Christalia Rinastiti; Dianita Ivana Permata; Bekti Palupi; Zuhriah Mumtazah; Meta Fitri Rizkiana; Atiqa Rahmawati
Journal of Biobased Chemicals Vol. 2 No. 2 (2022): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v2i2.269

Abstract

Bioethanol is a form of renewable energy that is used to reduce dependence on the use of fossil fuels which cause various negative impacts on the environment. Ulva sp. contains high carbohydrates so it has the potential as a raw material for bioethanol production. This study aims to determine the optimum conditions of the fermentation process with the variables used time, pH, and yeast concentration. This study used the results of hydrolysis of Ulva sp. with optimum operating conditions of 0.1 N HCl concentration, 80 mesh particle size, and 450 watt microwave power. Measurement of bioethanol levels was carried out using an alcoholmeter. The results showed that the optimal conditions for fermentation were 7 days of fermentation, pH 5.5, and yeast concentration of 1.5% which resulted in a bioethanol content of 7.55%.
Co-Authors Atiqa Rahmawati Bekti Palupi Dianita Ivana Permata Meta Fitri Rizkiana Zuhriah Mumtazah