By Jay J. Gan, Peter C. Zhu, Steven D. Aust, Ann T. Lemley
content material: 1. cleansing and metabolism of chemical compounds via white-rot fungi --
2. Microbial and photolytic degradation of 3,5,6-trichloro-2-pyridinol --
three. organic detoxing of organophosphate insecticides --
four. Evolution of latest enzymes and pathways : soil microbes adapt to s-triazine herbicides --
five. cleansing of a few halogenated insecticides through thiosulfate salts --
6. Anodic fenton degradation of insecticides --
7. Chemical detoxifying neutralization of ortho-phthalaldehyde : looking the "greenest" --
eight. Electrochemical destruction of triclosan --
nine. cleansing of pesticide in water utilizing sunlight photocatalysis --
10. Microbial degradation of atrazine in soils, sediments, and floor water --
eleven. Bioremediation of atrazine-contaminated soil --
12. detoxing of pesticide residues in soil utilizing phytoremediation --
thirteen. Remediation of halogenated fumigant compounds within the root region through subsurface software of ammonium thiosulfate --
14. cleansing and destruction of PCBs, CAHs, CFCs, and halogenated biocides in soils, sludges, and different matrices utilizing Na/NH₃ --
15. comparability of atrazine and alachlor sorption, mineralization, and degradation capability in floor and aquifer sediments --
sixteen. Pesticide runoff and mitigation at a advertisement nursery web site --
17. affects of surfactant adjuvants on pesticide availability and shipping in soils.
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Additional info for Pesticide Decontamination and Detoxification
ACS Symposium Series; American Chemical Society: Washington, DC, 2003. ch004 Lawrence P. Wackett Department of Biochemistry, Molecular Biology and Biophysics and Biotechnology Institute, 1479 Gortner Avenue, University of Minnesota, St. Paul, M N 55108 Pseudomonas sp. ADP was used as a model to investigate how bacteria evolve new enzymes in new combinations to metabolize s-triazine herbicides. The metabolic pathway provides inorganic nitrogen to support microbial growth. The enzymes that initiate the metabolism of the herbicide atrazine are denoted AtzA, AtzB and AtzC.
The CBDOPH and ELP-OPH fusion system offers an attractive one-step purification and immobilization of enzymes. The advent of DNA shuffling and directed evolution strategies has opened up an entire new realm in protein engineering where an enzyme can be "tuned" to target a wide array of substrates. Although the use of these technologies in large-scale operations is limited to date, we will eventually turn to these methods as the technology matures and as the public starts to demand the use of more environmentallyfriendlytreatment methods.
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