PMID- 23746365
OWN - NLM
STAT- MEDLINE
DCOM- 20140205
LR  - 20171116
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 92
IP  - 10
DP  - 2013 Aug
TI  - Degradation of pesticide mixture on modified matrix of a biopurification system 
      with alternatives lignocellulosic wastes.
PG  - 1361-6
LID - S0045-6535(13)00713-3 [pii]
LID - 10.1016/j.chemosphere.2013.04.088 [doi]
AB  - The biobed systems were designed to retain and to degrade pesticides through the 
      properties of a biomixture composed of straw (ST), topsoil and peat (PT) 2:1:1 
      v/v. The ST is the main substrate in the biomixture, as it allows the 
      proliferation of fungi that promotes pesticide degradation. The use of readily 
      available components in the biomixture is an important aspect to build a biobed. 
      Therefore, potential use of readily available wastes as barley husk (BH), sawdust 
      (SW) and oat husk (OH), as total or partial substitutes of ST were tested in 
      pesticide degradation studies. Metabolite formation and the biological activities 
      were also evaluated. Biomixture composed of OH was highly efficient in pesticide 
      degradation, with t(1/2) values of 28.6, 58.9 and 26.8 d for atrazine (ATZ), 
      chlorpyrifos (CHL) and isoproturon (ISP). On the other hand, comparable for 
      degrading capacities with the ST based biomixture were obtained with SW and BH, 
      but only as partial replacement. Contrarily, high t(1/2) values (more than 100 d) 
      were obtained in biomixtures with total substitution of ST by SW or BH. 
      Metabolite formation was observed in all biomixtures tested, but without clear 
      formation patterns. Moreover, high and stable biological activity was observed in 
      the biomixtures composed of OH. Therefore, our results demonstrated that ST can 
      be partial or totally replaced by OH in the biomixture allowing an efficient 
      degradation of pesticide mixture. However, it is recommended that ST can be only 
      partially replaced by BH and SW in the biomixture to allow efficient pesticide 
      degradation.
CI  - Copyright (c) 2013. Published by Elsevier Ltd.
FAU - Urrutia, C
AU  - Urrutia C
AD  - Universidad de La Frontera, Avenida Francisco Salazar, 01145 Temuco, Chile.
FAU - Rubilar, O
AU  - Rubilar O
FAU - Tortella, G R
AU  - Tortella GR
FAU - Diez, M C
AU  - Diez MC
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130606
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Pesticides)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 9004-34-6 (Cellulose)
SB  - IM
MH  - Biodegradation, Environmental
MH  - Cellulose/chemistry/*metabolism
MH  - Fungi/metabolism
MH  - Pesticides/*isolation & purification/metabolism
MH  - Soil/*chemistry
MH  - *Soil Microbiology
MH  - Soil Pollutants/*isolation & purification/metabolism
OTO - NOTNLM
OT  - Biobed
OT  - Biological activities
OT  - Lignocellulosic waste
OT  - Pesticide mixture
EDAT- 2013/06/12 06:00
MHDA- 2014/02/06 06:00
CRDT- 2013/06/11 06:00
PHST- 2012/12/10 00:00 [received]
PHST- 2013/04/24 00:00 [revised]
PHST- 2013/04/28 00:00 [accepted]
PHST- 2013/06/11 06:00 [entrez]
PHST- 2013/06/12 06:00 [pubmed]
PHST- 2014/02/06 06:00 [medline]
AID - S0045-6535(13)00713-3 [pii]
AID - 10.1016/j.chemosphere.2013.04.088 [doi]
PST - ppublish
SO  - Chemosphere. 2013 Aug;92(10):1361-6. doi: 10.1016/j.chemosphere.2013.04.088. Epub 
      2013 Jun 6.