LAPORAN HIBAH PENELITIAN STRATEGIS NASIONAL TAHUN ANGGARAN 2010 PENGEMBANGAN TEKNOLOGI BARU PRODUKSI BIOETANOL DARI NIRA SIWALAN (Borassus flabellifer) MENGGUNAKAN FLOCCULENT Saccharomyces cerevisiae Agustin Krisna Wardani, STP, MSi, PhD Ir. Aji Sutrisno , MSi, PhD Dr. Ir. Bambang Susilo, M.Agr. Dibiayai Oleh Direktorat Jenderal Pendidikan Tinggi, Kementerian Pendidikan Nasional sesuai dengan Surat Perjanjian Penugasan Dalam Rangka Pelaksanaan Hibah Penelitian Strategis Nasional Tahun Anggaran 2010 Nomor : 522/SP2H/PP/DP2M/VII/2010, tanggal 24 Juli 2010 UNIVERSITAS BRAWIJAYA NOVEMBER 2010
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Pengembangan Teknologi Baru Produksi Bioetanol Dari Nira Silawan
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LAPORAN HIBAH PENELITIAN STRATEGIS NASIONAL TAHUN ANGGARAN 2010
PENGEMBANGAN TEKNOLOGI BARU PRODUKSI BIOETANOL DARI NIRA SIWALAN
(Borassus flabellifer) MENGGUNAKAN FLOCCULENT Saccharomyces cerevisiae
central composite design (CCD) was chosen to explain the combined effects of two
parameters and to design the minimum number of experiments. The statistical analysis
of the results showed, in the range studied, the inoculum and urea concentration had an
effects on the ethanol production. The model predicted that maximum ethanol
production was achieved at inoculum concentration of 16,41% and 0,31% of urea.
Maximum ethanol production of 7,826% was achieved under the optimized condition.
This values was in good agreement with experimental values, thus confirming the
reliability of our empirical model in optimizing ethanol production by flocculating
Saccharomyces cerevisiae. Yield and efficiency of ethanol production was 0,42 and
82%, respectively.
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