Applied Microbiology and Biotechnology

, Volume 90, Issue 4, pp 1471–1483

Biodegradation of deltamethrin and its hydrolysis product 3-phenoxybenzaldehyde by a newly isolated Streptomyces aureus strain HP-S-01

  • Shaohua Chen
  • Kaiping Lai
  • Yanan Li
  • Meiying Hu
  • Yanbo Zhang
  • Yong Zeng
Environmental Biotechnology

DOI: 10.1007/s00253-011-3136-3

Cite this article as:
Chen, S., Lai, K., Li, Y. et al. Appl Microbiol Biotechnol (2011) 90: 1471. doi:10.1007/s00253-011-3136-3

Abstract

A newly isolated actinomycete strain HP-S-01 from activated sludge could effectively degrade deltamethrin and its major hydrolysis product 3-phenoxybenzaldehyde. Based on the morphological, cultural, physio-biochemical characteristics, and 16S rDNA sequence analysis, strain HP-S-01 was identified as Streptomyces aureus. Strain HP-S-01 was also found highly efficient in degrading cyfluthrin, bifenthrin, fenvalerate, fenpropathrin, permethrin, and cypermethrin. Strain HP-S-01 rapidly degraded deltamethrin without a lag phase over a wide range of temperature (18~38°C) and pH (5~10), and metabolized to produce α-hydroxy-3-phenoxy-benzeneacetonitrile and 3-phenoxybenzaldehyde by hydrolysis of the carboxylester linkage. The 3-phenoxybenzaldehyde was further oxidized to form 2-hydroxy-4-methoxy benzophenone resulting in its detoxification. No persistent accumulative product was detected by gas chromatography-mass spectrometry (GC/MS) analysis. Response surface methodology was used to optimize degradation conditions. Strain HP-S-01 completely removed 50~300 mg L−1 deltamethrin within 7 days under the optimal degradation conditions. Furthermore, the biodegradation kinetics corresponded with the first-order model. Therefore, strain HP-S-01 is suitable for the efficient and rapid bioremediation of pyrethroid-contaminated environment.

Keywords

Pyrethroids Deltamethrin 3-Phenoxybenzaldehyde Biodegradation Streptomyces aureus Kinetics 

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Shaohua Chen
    • 1
  • Kaiping Lai
    • 1
  • Yanan Li
    • 1
  • Meiying Hu
    • 1
  • Yanbo Zhang
    • 1
  • Yong Zeng
    • 1
  1. 1.Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Laboratory of Insect ToxicologySouth China Agricultural UniversityGuangzhouPeople’s Republic of China