Abstract
Phototrophic bacterial cells in the effluent from a lighted upflow anaerobic sludge blanket reactor supplied with a medium containing 142 mg S (as SO4 2−) l−1 accumulated a 6.8% w/w oleic acid content in cells and 19 mg cell-bound oleic acid l−1 in the effluent. Pure cultures of Rhodopseudomonas palustris and Blastochloris sulfoviridis isolated from the effluent also accumulated 5.1 and 6.4% w/w oleic acid contents in cells, respectively. The oleic acid content in the cells recovered from the LUASB reactor effluent was related to the phototrophic bacterial population in the LUASB reactor. The inverse relationship was observed in the LUASB reactor between phototrophic bacterial growth and sulfate concentration in the influent.
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Sawayama, S., Inoue, S., Tsukahara, K. et al. Phototrophic bacterial production of oleic acid in an illuminated upflow anaerobic sludge blanket reactor. Biotechnology Letters 23, 195–199 (2001). https://doi.org/10.1023/A:1005611404628
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DOI: https://doi.org/10.1023/A:1005611404628