Simultaneous multi-determination of pesticide residues in black tea leaves and infusion: a risk assessment study
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Simultaneous multi-determination of pesticide residues in black tea leaves and infusion: a risk assessment study
Auteur(s)
- HESHMATI Ali
- MEHRI Fereshteh
- MOUSAVI KHANEGHAH Amin
Editeur(s)
Autre(s)
Id
VRHLYNAY
Version
1382
Date ajout
21 décembre 2020 16:18
Date modification
21 décembre 2020 16:18
Résumé anglais
This study aimed to investigate the concentration of 33 pesticide residues in 60 black tea samples collected from Iran, determine their transfer rate, and assess their health risk during brewing. Pesticide extraction and analysis were performed by using a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and gas chromatography/tandem mass spectrometry (GC-MS/MS), respectively. The limits of detection (LOD) and the limits of quantification (LOQ) of pesticides were ranged 0.1–7.26 and 0.8–24 μg/kg for dried tea leaves and 0.03–3.1 and 0.09–10 μg/L for the tea infusion, respectively. The levels of pesticide residue in 52 (86.67%) out of 60 tea samples were above the LOD (0.1–7.26 μg/kg). Twenty four (40%) of the samples contained pesticides in a concentration higher than the maximum residue limit (MRL) set by the European Commission (EC). Seven out of 33 validated pesticides were detected in dried tea leaf samples that only four of seven, including buprofezin, chlorpyrifos, hexaconazole, and triflumizole, were transferred into tea infusion, demonstrating that the concentrations of pesticides in infusion were raised during brewing. The risk assessment study for detected pesticides in the tea infusion samples indicated that this beverage consumption was safe for consumers, while the mean residue of some pesticides in positive samples was higher than the MRL; therefore, periodic control of these pesticides should be regularly implemented.
Note
None
CRAW tags
- AB - Non-spécifique
- FREDO santé humaine
- pesticide residue
- pesticides
- polémique
- thé
WEB tags
Titre de la publication
Environmental Science and Pollution Research
Date caractères
2020-11-16
Date publication
16 novembre 2020
Doi
10.1007/s11356-020-11658-3
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Issn
1614-7499
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