Enhanced biodegradation of phenanthrene by a marine bacterium in presence of a synthetic surfactant

被引：36

作者：

Cuny, P ^{[1
]}

Faucet, J ^{[1
]}

Acquaviva, M ^{[1
]}

Bertrand, JC ^{[1
]}

Gilewicz, M ^{[1
]}

机构：

[1] Univ Mediterranee, Ctr Oceanol Marseille, Lab Oceanog & Biogeochim, UMR 6535, F-13288 Marseille 09, France

来源：

LETTERS IN APPLIED MICROBIOLOGY | 1999年 / 29卷 / 04期

关键词：

D O I：

10.1046/j.1365-2672.1999.00623.x

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The biodegradation of phenanthrene by the marine strain Sphingomonas sp. 2MPII (DSMZ 11572) was enhanced by the solubilizating properties of the nonionic surfactant Tween 80. After 197 h of incubation, 85 +/- 4% of the initial amount of phenanthrene (0.4 g l(-1)) was biodegraded in presence of Tween 80 (0.5 g l(-1)) as opposed to 52 +/- 5% without this synthetic surfactant. These results confirm that the activity of the strain 2MPII is limited by the bioavailability of the polycyclic aromatic hydrocarbon (PAH) substrate in the aqueous phase. Tween 80 appears to be efficient in increasing the bioavailability of hydrophobic compounds such as PAHs.

引用

页码：242 / 245

页数：4

共 13 条

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