Effect Factors of Biodegradation on Phenanthrene by Pseudomonas putida

Abstract:

Abstract. This study discussed the effect factors of biodegradation on phenanthrene by P.putida. The outcomes showed that the optimal temperature conditions was 35°C, and the optimal pH was pH7.5, and that under the shaking condition increases the availability of phe. The effect of glucose increase in the concentration of glucose showed repressive effect. Moreover, the presence of salicylate increased the phenanthrene degradation to some extent. Phenanthrene degradation in presence of succinic acid did not differ significantly, this implies that the presence of other carbon sources does not completely inhibited. Therefore, phenanthrene may be co-utilized by p. putida along with other substrates. And that the addition of non-ionic surfactants bring about further phe biodegradation, the biodegradability of phe is greatly improved in presence of surfactants at proper concentrations. The phenanthrene was degraded higher efficiently at higher phe concentrations under the presence of fluorene, phe and fluorene present an obviously co-metabolism.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 2107-2110
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.2107
• Online since: November 2011
• Authors: Zhao Xiang Han, Zhang Meng, Chun Xia Lv
• Keywords: Biodegradation, P. putida, PAH, Phenanthrene

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DOI: 10.1016/j.jhazmat.2008.08.098