Chlorpyrifos degradation in a biomixture of biobed at different maturity stages

CHEMOSPHERE;
Chemosphere

dc.creatorTortella, G.R.
dc.creatorRubilar, O.
dc.creatorCastillo, M.D.
dc.creatorCea, M.
dc.creatorMella-Herrera, R.
dc.creatorDiez, M.C.
dc.date2017-04-27T18:49:58Z
dc.date2022-07-07T01:42:20Z
dc.date2017-04-27T18:49:58Z
dc.date2022-07-07T01:42:20Z
dc.date2012
dc.date.accessioned2023-08-22T09:44:49Z
dc.date.available2023-08-22T09:44:49Z
dc.identifier0
dc.identifierD09R1006
dc.identifierD09R1006
dc.identifierWOS:000304505400012
dc.identifier0045-6535
dc.identifierhttps://hdl.handle.net/10533/196986
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8337475
dc.descriptionThe biomixture is a principal element controlling the degradation efficacy of the biobed. The maturity of the biomixture used in the biobed affects its overall performance of the biobed, but this is not well studied yet. The aim of this research was to evaluate the effect of using a typical composition of Swedish biomixture at different maturity stages on the degradation of chlorpyrifos. Tests were made using biomixture at three maturity stages: 0 d (BC0), 15 d (BC15) and 30 d (BC30); chlorpyrifos was added to the biobeds at final concentration of 200, 320 and 480 mg kg(-1). Chlorpyrifos degradation in the biomixture was monitored over time. Formation of TCP (3,5,6-trichloro-2-pyrinidol) was also quantified, and hydrolytic and phenoloxidase activities measured. The biomixture efficiently degraded chlorpyrifos (degradation efficiency >50%) in all the evaluated maturity stages. However, chlorpyrifos degradation decreased with increasing concentrations of the pesticide. TCP formation occurred in all biomixtures, but a major accumulation was observed in BC30. Significant differences were found in both phenoloxidase and hydrolytic activities in the three maturity stages of biomixture evaluated. Also, these two biological activities were affected by the increase in pesticide concentration. In conclusion, our results demonstrated that chlorpyrifos can be degraded efficiently in all the evaluated maturity stages. (C) 2012 Elsevier Ltd. All rights reserved.
dc.descriptionThis study was financed by Fondef Project D09R1006 and Fondecyt Project No 3090049.
dc.description20
dc.descriptionFONDEF
dc.descriptiongtortell@ufro.cl
dc.descriptionFondef [D09R1006]; Fondecyt [3090049]
dc.descriptionFONDEF
dc.languageENG
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinfo:eu-repo/grantAgreement/Fondef/D09R1006
dc.relationinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relationhttps://doi.org/10.1016/j.chemosphere.2012.02.072
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleChlorpyrifos degradation in a biomixture of biobed at different maturity stages
dc.titleCHEMOSPHERE
dc.titleChemosphere
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageOXFORD


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