Tandem Mass Spectrometric Analysis of Residual Persistence, Decontamination and Dehydration on Cyantraniliprole Residues in Chilli

• Published in: Journal of food composition and analysis 2024-01, Vol.125, p.105786, Article 105786
• Main Authors: Kamboj, Rajeev, Sharma, Smriti, Mandal, Kousik, Kang, B K
• Format: Article
• Language: English
• Subjects: chilli; Cyantraniliprole; decontamination; dehydration; dissipation; processing factor; residues; soil
• ISSN: 0889-1575; 1096-0481
• DOI: 10.1016/j.jfca.2023.105786

The dissipation behavior and persistence of cyantraniliprole residues in chilli and soil were assessed using high performance liquid chromatography and tandem mass spectrometry. Analytical methodology was suitably validated for recovery, precision, accuracy and sensitivity Limit of quantification (LOQ) and limit of detection (LOD) were found to be 0.01 and 0.003mgkg-1. After two applications of cyantraniliprole @ 60, 75, 120g a.i ha-1, the average initial deposits were found to be 0.69-0.72, 0.88-0.92, 1.40-1.42mgkg-1, respectively, years 2021 & 2022. Half-life values (T1/2) for cyantraniliprole in chilli were 3.24, 3.53 and 3.89 days in 2021 and 3.78, 3.62 and 3.79 days in 2022, respectively for 60, 75, 120g a.i ha-1 dose. Household processing methods were evaluated for decontamination of residues such as tap water wash, luke warm water wash, baking soda, common salt, acetic acid, potassium permanganate and boiling water. Among these methods, washing with boiling water was found to be most effective in reducing cyantraniliprole residues (up to 86%) followed by soaking in potassium permanganate (up to 72.27%) and soaking in baking soda (up to 69.37%). After dehydration of red chilli fruits, highest processing factor was 2.40 and 2.45 after application of cyantraniliprole @ 75 and 120g a.i ha-1 in the test years. •Two-year study on persistence of cyantraniliprole was carried out in chilli and soil•Analytical methodology was validated to estimate cyantraniliprole residues in chilli and soil.•Limit of quantification and limit of detection were found to be 0.01 and 0.003mgkg-1.•Washing with boiling water reduced cyantraniliprole residues most effectively.•Dehydration of red chilli resulted in increased residues of cyantraniliprole•Waiting period of 3 days is suggested for harvesting of green chilli.