| View Larger Image | Comparison of n-eicosane and phenanthrene removal by pure and mixed cultures of two marine bacteria [An article from: Environmental Research] | Digitalby A.D. Syakti (Author), M. Acquaviva (Author), M. Gilewicz (Author), P Doumenq (Author)
| List Price: | $8.95 | | | Available: | Available for download now |
| | Binding: | Digital | | Publisher: | Elsevier | | Publication Date: | October 01, 2004 |
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Product Description
This digital document is a journal article from Environmental Research, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: The biotransformation activities of two hydrocarbonoclastic marine bacteria, Corynebacterium sp. and Sphingomonas sp. 2MPII, on n-eicosane and phenanthrene were investigated. During a 56-day experiment, in pure and mixed cultures, Corynebacterium sp. and Sphingomonas sp. 2MPII removed about 70% of the initial n-eicosane and phenanthrene concentrations (1 and 0.4gL^-^1, respectively). In pure cultures, culturable cell abundances increased over time, from 0.8 to 8.6x10^-^1^1CFUL^-^1 (Corynebacterium sp.) and from 2.1 to 16x10^-^1^1CFUL^-^1 (Sphingomonas sp. 2MPII ) but remained barely constant in mixed cultures. We defined a biotransformation index based on the number of culturable cells rather than the culture protein content, with the biotransformation cell yield (BCY) expressed in grams hydrocarbon CFU^-^1 per day to better characterize hydrocarbon removal in pure and mixed cultures. The BCY was markedly higher in mixed than in pure cultures, increasing by a factor of 2-10.7 and 2.3-4.7 for n-eicosane and phenanthrene removal, respectively. |
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