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All Journal Jurnal Online Mahasiswa (JOM) Bidang Pertanian
Santi Andriani Putri, Santi Andriani
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Agriculture, Biological Sciences & Forestry

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HUBUNGAN ANTARA KADAR GULA REDUKSI, JUMLAH SEL MIKROB DAN ETANOL DALAM PRODUKSI BIOETANOL DARI FERMENTASI AIR KELAPA DENGAN PENAMBAHAN UREA Putri, Santi Andriani; Restuhadi, Fajar '; ', Rahmayuni '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

This research was conducted to determine the best concentration of urea in bioethanol fermentation from coconut water using Saccharomyces cerevisiae in increasing ethanol production. This research was done experimentally using four treatments and two replications. The combination of urea levels were U1 (without urea), U2 (0,2 g/l), U3 (0,4 g/l) and U4 (0,6 g/l). Observations were made every 24 hours for 3 days include ethanol production, sugar reduction and the number of cells microbes. Data obtained from the analysis descriptively using tabulation and graphs. The best treatment was found in U3 (urea 0,4 g/l) with the highest ethanol’s yield of 11,25%, reduction of residual sugar amount of 168,13 g/l and the number of cells/mL of 1,0x109 in the three day.   Keywords: bioethanol, coconut water, urea, fermentation  
Co-Authors ', Rahmayuni ' Fajar Restuhadi