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Publikasi Staf Biotek

Hydrogen Production Using Rhodobium marinum in Milk Liquid Waste



This study was conducted to investigate the effect of dilution towards milk liquid waste in biological production of hydrogen gas by photosynthetic bacteria, Rhodobium marinum. The methods included pretreatments of the milk liquid waste by sterilization, filtration, neutralization, and centrifugation, before and after dilution. From several experiments, 100% of milk liquid waste substrate generated the highest hydrogen gas production up to 93.45 ± 16.15 ml, but the highest efficiency was obtained at level 12.5% of milk liquid waste substrate which valued 0.33 mol hydrogen/ mol glucose consumed. Kinetics measurements for hydrogen production process in milk liquid waste which was added with nutrients obtained yield of biomass formed per substrate consumed (Yx/s) i.e. 0.192 g/g, yield of product per substrate (Yp/s) i.e. 0.009 g/g, and yield of product produced per biomass (Yp/x) i.e. 0.043 g/g. For kinetics measurements on the milk liquid waste medium without nutrients addition, obtained Yx/s was 0.261 g / g, Yp/s was 0.019 g/g and Yp/x was 0.070 g/g.

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Judul Seri
Jurnal Teknologi Indonesia
No. Panggil
-
Penerbit Lembaga Ilmu Pengetahuan Indonesia. : .,
Deskripsi Fisik
Vol. 38 (1): 1–8.
Bahasa
English
ISBN/ISSN
0126-1533
Klasifikasi
NONE
Tipe Isi
text
Tipe Media
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Tipe Pembawa
online resource
Edisi
-
Subyek
Info Detil Spesifik
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Pernyataan Tanggungjawab

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