Abstract
Abstract The objective of this work was to adapt and validate a multiresidue method for pesticide analysis, to determine the influence of the current postharvest handling steps on the degradation of pesticide residues in papaya. 'THB' papaya of the Solo group were sampled at each postharvest handling step in the packinghouse. For the validation of the multiresidue analysis in papaya, the technique used for extraction was the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method, with modifications. Pesticide quantification was carried out using an ultra-high performance liquid chromatograph coupled to a triple quadrupole mass spectrometer with electrospray ionization (UHPLC-MS/MS). Fruit were analyzed before and after the handling procedures and were evaluated after ripening. The used methodology was successfully validated to detect the azoxystrobin, carbendazim, carbofuran, difenoconazole, imazalil, imidacloprid, flutriafol, prochloraz, pyraclostrobin, tebuconazole, thiabendazole, and thiacloprid pesticides in papaya. Fruit washing reduces azoxystrobin and difenoconazole residue levels in 78 to 90% and in 47 to 90% on fruit surface, respectively. Although the postharvest handling steps are ineffective in reducing the levels of thiabendazole, if this fungicide is applied at the appropriate rate, the residue levels will remain below the limits permitted by law.
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Claims 5
Claim · model-written summary
The adapted QuEChERS and UHPLC-MS/MS multiresidue method was successfully validated to detect twelve pesticides in papaya.
- Taxon
- papaya
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=60)
Carica papayae0 - Outcome
- successfully validated to detecte0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=500)
Verbatim
e0“The used methodology was successfully validated to detect the azoxystrobin, carbendazim, carbofuran, difenoconazole, imazalil, imidacloprid, flutriafol, prochloraz, pyraclostrobin, tebuconazole, thiabendazole, and thiacloprid pesticides in papaya”
Claim · model-written summary
Fruit washing reduced azoxystrobin residue levels on the papaya fruit surface by 78 to 90%.
- Taxon
- papayaCarica papayae1
- Organ / stage
- fruit surfacee0
- Treatment
- Fruit washinge0
- Outcome
- azoxystrobine0
- Direction
- reducese0
- Value
- 78 to 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit washing reduces azoxystrobin and difenoconazole residue levels in 78 to 90% and in 47 to 90% on fruit surface, respectively”
e1“papaya”
Claim · model-written summary
Fruit washing reduced difenoconazole residue levels on the papaya fruit surface by 47 to 90%.
- Taxon
- papayaCarica papayae1
- Organ / stage
- fruit surfacee0
- Treatment
- Fruit washinge0
- Outcome
- difenoconazolee0
- Direction
- reducese0
- Value
- 47 to 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit washing reduces azoxystrobin and difenoconazole residue levels in 78 to 90% and in 47 to 90% on fruit surface, respectively”
e1“papaya”
Claim · model-written summary
The postharvest handling steps were ineffective in reducing thiabendazole residue levels in papaya.
- Taxon
- papayaCarica papayae1
- Treatment
- postharvest handling stepse0
- Outcome
- levels of thiabendazolee0
- Direction
- ineffective in reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the postharvest handling steps are ineffective in reducing the levels of thiabendazole”
e1“papaya”
Claim · model-written summary
If thiabendazole is applied at the appropriate rate, residue levels in papaya will remain below the legal limits.
- Taxon
- papayaCarica papayae1
- Outcome
- residue levels will remain below the limits permitted by lawe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“if this fungicide is applied at the appropriate rate, the residue levels will remain below the limits permitted by law”
e1“papaya”
The same questions in other papers
processing · molecular: metabolites · Carica papaya (papaya)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.