IDENTIFICATION AND CHARACTERIZATION OF A SOIL BACTERIUM WITH EXTRACELLULAR EMULSIFYING ACTIVITY

被引：52

作者：

BERG, G ^{[1
]}

SEECH, AG ^{[1
]}

LEE, H ^{[1
]}

TREVORS, JT ^{[1
]}

机构：

[1] UNIV GUELPH,DEPT ENVIRONM BIOL,GUELPH N1G 2W1,ONTARIO,CANADA

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-ENVIRONMENTAL SCIENCE AND ENGINEERING & TOXIC AND HAZARDOUS SUBSTANCE CONTROL | 1990年 / 25卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Emulsifying agent; hydrocarbons; PCBs; Pseudomonas aeruginosa; remediation; surface-active;

D O I：

10.1080/10934529009375595

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A gram-negative bacterial strain (designated UG2) isolated from oil-contaminated soil was identified as Pseudomonas aeruginosa based on biochemical characterization, total cellular fatty acid analysis, and serotyping. The strain produced high extracellular emulsifying activity when grown on various aromatic and straight chain hydrocarbons such as naphthalene, stearic acid, hexadecane and sunflower oil. The emulsifying activity in crude culture filtrates of UG2 exhibited stability at 80°C. In addition, the presence of the emulsifying agent increased partitioning of 14C-PCB into the aqueous phase in soil slurries by a factor of 30-fold over that of the water control. The results suggest that UG2 emulsifying agent may have a potential application in remediation of PCB-contaminated soil that has also been inoculated with PCB-degrading organism(s). © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：753 / 764

页数：12

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