Publication: Utilization of volatile fatty acids from the anaerobic digestion liquor of sewage sludge for 5-aminolevulinic acid production by photosynthetic bacteria
Issued Date
1994-11-01
Resource Type
ISSN
15730972
09593993
09593993
Other identifier(s)
2-s2.0-0028095991
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Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
World Journal of Microbiology and Biotechnology. Vol.10, No.6 (1994), 677-680
Suggested Citation
T. Tanaka, K. Sasaki, N. Noparatnaraporn, N. Nishio Utilization of volatile fatty acids from the anaerobic digestion liquor of sewage sludge for 5-aminolevulinic acid production by photosynthetic bacteria. World Journal of Microbiology and Biotechnology. Vol.10, No.6 (1994), 677-680. doi:10.1007/BF00327958 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/9505
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Title
Utilization of volatile fatty acids from the anaerobic digestion liquor of sewage sludge for 5-aminolevulinic acid production by photosynthetic bacteria
Author(s)
Abstract
Using volatile fatty acids (VFA) from the anaerobic digestion liquor of sewage sludge, up to 9.2 m m 5-aminolevulinic acid (ALA) could be produced by Rhodobacter sphaeroides under anaerobic-light (5 kLux) conditions with repeated addition of levulinic acid (LA) and glycine and using a large inoculum (approx. 2 g/l of cells, initially from glutamate/malate medium). As the VFA medium also contained organic nitrogen sources such as glutamic acid, the cells were later grown up to about 2 g/l in the VFA medium instead of the glutamate/malate medium. ALA production was then again promoted by adding LA and glycine. Using this improved method, up to 9.3 m m ALA was produced by feeding propionate and acetate together with LA and glycine, indicating that VFA medium formed from sewage sludge could be useful for ALA production. © 1994 Rapid Communications of Oxford Ltd.