Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces
Pesticides are applied repeatedly to grain, fruit, and vegetable crops for protection against pathogens, pests, and weeds, in short periods of time before harvest. The effective and fast monitoring of chemical residues in agricultural products is important for the assurance of healthy food. This stu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Firenze University Press
2020-05-01
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| Series: | Advances in Horticultural Science |
| Subjects: | |
| Online Access: | https://oaj.fupress.net/index.php/ahs/article/view/8125 |
| _version_ | 1818513634241806336 |
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| author | Antonio José Steidle Neto Daniela de Carvalho Lopes Washington Azevêdo da Silva |
| author_facet | Antonio José Steidle Neto Daniela de Carvalho Lopes Washington Azevêdo da Silva |
| author_sort | Antonio José Steidle Neto |
| collection | DOAJ |
| description | Pesticides are applied repeatedly to grain, fruit, and vegetable crops for protection against pathogens, pests, and weeds, in short periods of time before harvest. The effective and fast monitoring of chemical residues in agricultural products is important for the assurance of healthy food. This study was accomplished to evaluate the feasibility to detect and estimate the concentration of dithiocarbamate fungicide (mancozeb) residues on intact lettuce leaves based on Vis/NIR spectral reflectance measurements and multivariate data analysis. In the pre-harvest interval, a high initial rate of decline of dithiocarbamate residues was observed between one and seven days after pesticide spraying (decrease of 90.3%), while a slower decline was verified from seventh to fourteenth day (decrease of 8.7%). The usefulness of this spectrometric method has been evidenced by determination of dithiocarbamate residues at concentrations between 0.23 and 10.3 mg CS2 kg-1, with detection and quantitation limits of 0.49 and 1.41 mg CS2 kg-1, respectively. Vis/NIR spectral reflectance combined to the partial least square analysis have potential to be applied for estimating dithiocarbamate concentrations on intact lettuce leaves, presenting advantages such as real-time measurements and the possibility to be built into the industrial processing lines. |
| first_indexed | 2024-12-11T00:04:12Z |
| format | Article |
| id | doaj.art-701a2490fd6449fba286e38dc0490931 |
| institution | Directory Open Access Journal |
| issn | 0394-6169 1592-1573 |
| language | English |
| last_indexed | 2024-12-11T00:04:12Z |
| publishDate | 2020-05-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Advances in Horticultural Science |
| spelling | doaj.art-701a2490fd6449fba286e38dc04909312022-12-22T01:28:22ZengFirenze University PressAdvances in Horticultural Science0394-61691592-15732020-05-0134210.13128/ahsc-8125Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettucesAntonio José Steidle Neto0Daniela de Carvalho Lopes1Washington Azevêdo da Silva2Federal University of São João del-ReiFederal University of São João del-ReiFederal University of São João del-ReiPesticides are applied repeatedly to grain, fruit, and vegetable crops for protection against pathogens, pests, and weeds, in short periods of time before harvest. The effective and fast monitoring of chemical residues in agricultural products is important for the assurance of healthy food. This study was accomplished to evaluate the feasibility to detect and estimate the concentration of dithiocarbamate fungicide (mancozeb) residues on intact lettuce leaves based on Vis/NIR spectral reflectance measurements and multivariate data analysis. In the pre-harvest interval, a high initial rate of decline of dithiocarbamate residues was observed between one and seven days after pesticide spraying (decrease of 90.3%), while a slower decline was verified from seventh to fourteenth day (decrease of 8.7%). The usefulness of this spectrometric method has been evidenced by determination of dithiocarbamate residues at concentrations between 0.23 and 10.3 mg CS2 kg-1, with detection and quantitation limits of 0.49 and 1.41 mg CS2 kg-1, respectively. Vis/NIR spectral reflectance combined to the partial least square analysis have potential to be applied for estimating dithiocarbamate concentrations on intact lettuce leaves, presenting advantages such as real-time measurements and the possibility to be built into the industrial processing lines.https://oaj.fupress.net/index.php/ahs/article/view/8125dithiocarbamateLactuca sativa L.multivariate data analysisspectral reflectance |
| spellingShingle | Antonio José Steidle Neto Daniela de Carvalho Lopes Washington Azevêdo da Silva Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces Advances in Horticultural Science dithiocarbamate Lactuca sativa L. multivariate data analysis spectral reflectance |
| title | Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces |
| title_full | Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces |
| title_fullStr | Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces |
| title_full_unstemmed | Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces |
| title_short | Feasibility of Vis/NIR spectroscopy to detect and estimate fungicide residues on intact lettuces |
| title_sort | feasibility of vis nir spectroscopy to detect and estimate fungicide residues on intact lettuces |
| topic | dithiocarbamate Lactuca sativa L. multivariate data analysis spectral reflectance |
| url | https://oaj.fupress.net/index.php/ahs/article/view/8125 |
| work_keys_str_mv | AT antoniojosesteidleneto feasibilityofvisnirspectroscopytodetectandestimatefungicideresiduesonintactlettuces AT danieladecarvalholopes feasibilityofvisnirspectroscopytodetectandestimatefungicideresiduesonintactlettuces AT washingtonazevedodasilva feasibilityofvisnirspectroscopytodetectandestimatefungicideresiduesonintactlettuces |