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Utilization of swine wastewater as a feedstock for the production of polyhydroxyalkanoates by Azotobacter vinelandii UWD

Title
Utilization of swine wastewater as a feedstock for the production of polyhydroxyalkanoates by Azotobacter vinelandii UWD
Authors
Cho K.-S.Wook Ryu H.Park C.-H.Goodrich P.R.
Ewha Authors
조경숙
SCOPUS Author ID
조경숙scopus
Issue Date
2001
Journal Title
Journal of Bioscience and Bioengineering
ISSN
1389-1723JCR Link
Citation
vol. 91, no. 2, pp. 129 - 133
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Azotobacter vinelandii UWD produced 0.69 g·l -1 poly(hydroxybutyrate-co-hydroxyvalerate, PHBV) with 7.9 mol% hydroxyvalerate (HV) from twofold-diluted swine wastewater (SW). When supplemented with 20 g·l -1 glucose, twofold-diluted SW increased copolymer production by 8.6 times. When three organic acids (acetate, propionate and butyrate) present in SW were supplemented with 20 g·l -1 glucose, PHBV production was comparable (5.5 g·l -1) to that in the case of using twofold-diluted SW supplemented with 20 g·l -1 glucose. However, the HV level (1.1-1.3 mol%) was very low. The component in SW contributing to copolymer production was found to be valerate. By 20 mM valerate 0.2 g·l -1 PHBV with 44.6 mol% HV was produced. With 30 g·l -1 glucose supplementation, 4.0 g·l -1 PHBV with 22 mol% HV was produced. The optimal ratios of carbon to phosphorus (C:P) and to nitrogen (C:N) were 165:1 and 22:1, respectively.
DOI
10.1016/S1389-1723(01)80054-2
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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