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Soils are rich in organics, particularly those that support growth of plants. These organics are possible sources of sustainable energy, and a microbial fuel cell (MFC) system can potentially be used for this purpose. Here, we report the application of an MFC system to electricity generation in a rice paddy field. In our system, graphite felt electrodes(More)
A laboratory study was conducted to evaluate the possibility of using wastewater from a soybean curd manufacturing plant as a growth promoter of Botryococcus braunii strain BOT-22. Soybean curd wastewater (SCW) were added to AF-6 medium to set the final concentration to 0% (control), 1%, 2%, 5%, and 10% (v/v). The growth and hydrocarbon production observed(More)
Screenings of thraustochytrids (Labyrinthulomycetes) have been conducted for 176 strains isolated from various sites in the Asian region to investigate what type of species and strains accumulate high levels of squalene. Thin layer chromatography (TLC) screening for squalene production revealed that 38 strains were rated as “+” (high), 29 as “±” (medium),(More)
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