Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses
Background: The biobed is a simple biopurification system used to prevent the point-source pesticide contamination that occurs at farm level. The typical composition of the biomixture used in this system is soil, peat and straw in volumetric proportions of 1:1:2. The principal component is straw due...
Guardado en:
| Autores principales: | , , , , , , , , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Pontificia Universidad Católica de Valparaíso
2013
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000600011 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0717-34582013000600011 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0717-345820130006000112014-01-16Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high dosesDiez,M. CristinaTortella,Gonzalo RBriceño,GabrielaCastillo,Maria del PilarDíaz,JorgePalma,GracielaAltamirano,CarolinaCalderón,CarolinaRubilar,Olga biopurification system biomixture lignocellulosic materials pesticide degradation Background: The biobed is a simple biopurification system used to prevent the point-source pesticide contamination that occurs at farm level. The typical composition of the biomixture used in this system is soil, peat and straw in volumetric proportions of 1:1:2. The principal component is straw due to its positive effects on biological activity and thus pesticide degradation. However, access to straw can be limited in some regions, so it must be replaced by other more readily available lignocellulosic residues. Results: Therefore, two alternate lignocellulosic materials (barley husks and pine sawdust) were evaluated as partial substitutes for straw. The degradation of a repeatedly applied mixture of six pesticides by these alternates was assessed. The microbial respiration and fluorescein diacetate (FDA) hydrolysis activity were also assessed. The results showed that the highest degradation efficiency was found in mixtures containing straw and barley husks. Each biomixtures tested achieved a high degradation (50 to 90%) of all the pesticides used except iprodione. Repeated applications of pesticides resulted in a slowing of the degradation rate of all pesticide types in all biomixtures. FDA activity and microbial respiration were higher in the biomixtures containing barley husks and straw compared to the mixture with pine sawdust, a result consistent with the pesticide degradations observed. Conclusions: This paper demonstrates that the straw in the traditional biomixture can be partially replaced by other lignocellulosic materials to efficiently degrade a mixture of pesticides, even when the pesticides are added in successive applications and high concentrations.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.16 n.6 20132013-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000600011en10.2225/vol16-issue6-fulltext-17 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
biopurification system biomixture lignocellulosic materials pesticide degradation |
| spellingShingle |
biopurification system biomixture lignocellulosic materials pesticide degradation Diez,M. Cristina Tortella,Gonzalo R Briceño,Gabriela Castillo,Maria del Pilar Díaz,Jorge Palma,Graciela Altamirano,Carolina Calderón,Carolina Rubilar,Olga Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| description |
Background: The biobed is a simple biopurification system used to prevent the point-source pesticide contamination that occurs at farm level. The typical composition of the biomixture used in this system is soil, peat and straw in volumetric proportions of 1:1:2. The principal component is straw due to its positive effects on biological activity and thus pesticide degradation. However, access to straw can be limited in some regions, so it must be replaced by other more readily available lignocellulosic residues. Results: Therefore, two alternate lignocellulosic materials (barley husks and pine sawdust) were evaluated as partial substitutes for straw. The degradation of a repeatedly applied mixture of six pesticides by these alternates was assessed. The microbial respiration and fluorescein diacetate (FDA) hydrolysis activity were also assessed. The results showed that the highest degradation efficiency was found in mixtures containing straw and barley husks. Each biomixtures tested achieved a high degradation (50 to 90%) of all the pesticides used except iprodione. Repeated applications of pesticides resulted in a slowing of the degradation rate of all pesticide types in all biomixtures. FDA activity and microbial respiration were higher in the biomixtures containing barley husks and straw compared to the mixture with pine sawdust, a result consistent with the pesticide degradations observed. Conclusions: This paper demonstrates that the straw in the traditional biomixture can be partially replaced by other lignocellulosic materials to efficiently degrade a mixture of pesticides, even when the pesticides are added in successive applications and high concentrations. |
| author |
Diez,M. Cristina Tortella,Gonzalo R Briceño,Gabriela Castillo,Maria del Pilar Díaz,Jorge Palma,Graciela Altamirano,Carolina Calderón,Carolina Rubilar,Olga |
| author_facet |
Diez,M. Cristina Tortella,Gonzalo R Briceño,Gabriela Castillo,Maria del Pilar Díaz,Jorge Palma,Graciela Altamirano,Carolina Calderón,Carolina Rubilar,Olga |
| author_sort |
Diez,M. Cristina |
| title |
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| title_short |
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| title_full |
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| title_fullStr |
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| title_full_unstemmed |
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| title_sort |
influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses |
| publisher |
Pontificia Universidad Católica de Valparaíso |
| publishDate |
2013 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000600011 |
| work_keys_str_mv |
AT diezmcristina influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT tortellagonzalor influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT bricenogabriela influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT castillomariadelpilar influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT diazjorge influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT palmagraciela influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT altamiranocarolina influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT calderoncarolina influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses AT rubilarolga influenceofnovellignocellulosicresiduesinabiobedbiopurificationsystemonthedegradationofpesticidesappliedinrepeatedlyhighdoses |
| _version_ |
1718441884112650240 |