Growth and Biodegradability of Facultative Psychrophilic SDBS-degrading Pseudomonas spp.

Facultative Psychrophilic Pseudomonas spp.의 생장 및 SDBS분해능에 대하여

  • 이혜주 (동아대학교 이과대학 생물학과)
  • Published : 1981.12.01


Facultative psychrophilic bacteria utilizing SDBS (Sodium Dodecyl Benzene Sulfonate) as their carbon source were isolated in the Han River. All of these isolated faculatative psychrophilic bacteria were identified as Pseudomonas spp. The growth and biodegradation rates of Ps.fluorescens LP6, Ps. fluorescens LS6 and Ps. putida LC1 among 8 identified facultative psychrophilic bacteria were investigated with spectrophotometer. The specific growth rates of these three facultative psychrophilic bacteria at $25^{\circ}C$ were higher than those at any other temperatures. However, the final cell yields were the highest for cells grown at $5^{\circ}C$. The biodegradation of SDBS by Ps. fluorescens LP 6 was started at the stationary phase of cells. The biodegradation rate of SDBS by Ps. fluorescens LP6 was the highest when the cells were cultured at $25^{\circ}C$.