Biokinetic parameters and behavior of Aeromonas hydrophila during anaerobic growth
SCIE
SCOPUS
- Title
- Biokinetic parameters and behavior of Aeromonas hydrophila during anaerobic growth
- Authors
- Lee, S; Kim, J; Shin, SG; Hwang, S
- Date Issued
- 2008-06
- Publisher
- SPRINGER
- Abstract
- The biokinetics of glucose metabolism were evaluated in Aeromonas hydrophila during growth in an anaerobic biosystem. After approx 34 h growth, A. hydrophila metabolized 5,000 mg glucose l(-1) into the end- products ethanol, acetate, succinate and formate. The maximum growth rate, mu(m), half saturation coefficients, K-s, microbial yield coefficient, Y, cell mass decay rate coefficient, k(d), and substrate inhibition coefficient, K-si were 0.25 +/- 0.03 h(-1), 118 +/- 31 mg glucose l(-1), 0.12 mu g DNA mg glucose(-1), 0.01 h(-1), and 3,108 +/- 1,152 mg glucose l(-1), respectively. These data were used to predict the performance of a continuous growth system with an influent glucose concentration of 5,000 mg l(-1). Results of the analysis suggest that A. hydrophila will metabolize glucose at greater than 95% efficiency when hydraulic retention times ( HRTs) exceed 7 h, whereas the culture is at risk of washing out at an HRT of 6.7 h.
- Keywords
- acidogenesis; Aeromonas hydrophila; anaerobic digestion; biokinetics; inhibition; WASTE-WATER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22801
- DOI
- 10.1007/s10529-008-9660-2
- ISSN
- 0141-5492
- Article Type
- Article
- Citation
- BIOTECHNOLOGY LETTERS, vol. 30, no. 6, page. 1011 - 1016, 2008-06
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