Effect of Biobed Composition, Moisture, and Temperature on the Degradation of Pesticides
Biobeds retain and degrade pesticides through the presence of a biobed mixture consisting of straw, peat, and soil. The effects of biobed composition, moisture content, and temperature on pesticide degradation were investigated in laboratory studies. Straw produced the main microbial activity in the...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2007-07, Vol.55 (14), p.5725-5733 |
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| container_title | Journal of agricultural and food chemistry |
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| creator | Castillo, Maria del Pilar Torstensson, Lennart |
| description | Biobeds retain and degrade pesticides through the presence of a biobed mixture consisting of straw, peat, and soil. The effects of biobed composition, moisture content, and temperature on pesticide degradation were investigated in laboratory studies. Straw produced the main microbial activity in the biobed mixtures as strong positive correlations were observed between straw, respiration, and phenoloxidase content. Most pesticides investigated were dissipated by cometabolic processes, and their dissipation was correlated with respiration and/ or phenoloxidase content. More pesticides were more dissipated at biobed moisture levels of 60% water holding capacity (WHC) than at 30% and 90% WHC, while 20 °C gave higher dissipation rates than 2 and 10 °C. A straw:peat:soil ratio of 50:25:25% v/v is recommended in field biobeds since this produces high microbial activity and low pH, favorable for lignin-degrading fungi and phenoloxidase activity. Keywords: Biobeds; pesticides; degradation; white-rot fungi; phenoloxidases; manganese peroxidase; Phanerochaete chrysosporium |
| doi_str_mv | 10.1021/jf0707637 |
| format | Article |
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Agric. Food Chem</addtitle><description>Biobeds retain and degrade pesticides through the presence of a biobed mixture consisting of straw, peat, and soil. The effects of biobed composition, moisture content, and temperature on pesticide degradation were investigated in laboratory studies. Straw produced the main microbial activity in the biobed mixtures as strong positive correlations were observed between straw, respiration, and phenoloxidase content. Most pesticides investigated were dissipated by cometabolic processes, and their dissipation was correlated with respiration and/ or phenoloxidase content. More pesticides were more dissipated at biobed moisture levels of 60% water holding capacity (WHC) than at 30% and 90% WHC, while 20 °C gave higher dissipation rates than 2 and 10 °C. A straw:peat:soil ratio of 50:25:25% v/v is recommended in field biobeds since this produces high microbial activity and low pH, favorable for lignin-degrading fungi and phenoloxidase activity. Keywords: Biobeds; pesticides; degradation; white-rot fungi; phenoloxidases; manganese peroxidase; Phanerochaete chrysosporium</description><subject>Biological and medical sciences</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Monophenol Monooxygenase - analysis</subject><subject>Pesticides - analysis</subject><subject>Pesticides - metabolism</subject><subject>Phanerochaete - metabolism</subject><subject>Soil - analysis</subject><subject>Soil Microbiology</subject><subject>Temperature</subject><subject>Water - analysis</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0MGO0zAQBmALgdiycOAFkC8gIW1g7MR2eoSyC0iLWKAgbtYkHoNLExc7keDtcdVqe-FkyfPpt-dn7LGAFwKkeLnxYMDo2txhC6EkVEqI9i5bQBlWrdLijD3IeQMArTJwn50Jo4xYgliw75feUz_x6PnrEDtyfBWHXcxhCnG84B9iyNOc6ILj6Piahh0l3F_wOPLpJ_E39COhw73eZ9xQnkIfHOWH7J7HbaZHx_Ocfb26XK_eVdcf375fvbqusBFyqoQTiAS9boQj3aLuOi994xwsWy-FrjtSdecb4xUK0xFSbaAD3RqPZWGqz9mzQ-4uxd9zed4OIfe03eJIcc5WQguqAVng8wPsU8w5kbe7FAZMf60Au6_R3tZY7JNj6NwN5E7y2FsBT48Ac49bn3DsQz65dlnXDejiqoMrNdKf2zmmX1ab2ii7vvli9dUnkMvP0n475WKf7SbOaSzd_eeD_wBR3JSH</recordid><startdate>20070711</startdate><enddate>20070711</enddate><creator>Castillo, Maria del Pilar</creator><creator>Torstensson, Lennart</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>M7N</scope><scope>P64</scope></search><sort><creationdate>20070711</creationdate><title>Effect of Biobed Composition, Moisture, and Temperature on the Degradation of Pesticides</title><author>Castillo, Maria del Pilar ; Torstensson, Lennart</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a412t-1d1aae0c641de68a6bbf2f4dd098f2163be53bf47f5a17beae370b0687fa637e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Biological and medical sciences</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Monophenol Monooxygenase - analysis</topic><topic>Pesticides - analysis</topic><topic>Pesticides - metabolism</topic><topic>Phanerochaete - metabolism</topic><topic>Soil - analysis</topic><topic>Soil Microbiology</topic><topic>Temperature</topic><topic>Water - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Castillo, Maria del Pilar</creatorcontrib><creatorcontrib>Torstensson, Lennart</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of agricultural and food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Castillo, Maria del Pilar</au><au>Torstensson, Lennart</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Biobed Composition, Moisture, and Temperature on the Degradation of Pesticides</atitle><jtitle>Journal of agricultural and food chemistry</jtitle><addtitle>J. Agric. Food Chem</addtitle><date>2007-07-11</date><risdate>2007</risdate><volume>55</volume><issue>14</issue><spage>5725</spage><epage>5733</epage><pages>5725-5733</pages><issn>0021-8561</issn><eissn>1520-5118</eissn><coden>JAFCAU</coden><abstract>Biobeds retain and degrade pesticides through the presence of a biobed mixture consisting of straw, peat, and soil. The effects of biobed composition, moisture content, and temperature on pesticide degradation were investigated in laboratory studies. Straw produced the main microbial activity in the biobed mixtures as strong positive correlations were observed between straw, respiration, and phenoloxidase content. Most pesticides investigated were dissipated by cometabolic processes, and their dissipation was correlated with respiration and/ or phenoloxidase content. 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| ispartof | Journal of agricultural and food chemistry, 2007-07, Vol.55 (14), p.5725-5733 |
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| source | ACS Publications; MEDLINE |
| subjects | Biological and medical sciences Food industries Fundamental and applied biological sciences. Psychology Monophenol Monooxygenase - analysis Pesticides - analysis Pesticides - metabolism Phanerochaete - metabolism Soil - analysis Soil Microbiology Temperature Water - analysis |
| title | Effect of Biobed Composition, Moisture, and Temperature on the Degradation of Pesticides |
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