Project Coordinating Cell, Pesticide Residue Laboratory, All India Network Project on Pesticide Residues, Indian Council of Agricultural Research-Indian Agricultural Research Institute, New Delhi 110 012, India.
Project Coordinating Cell, Pesticide Residue Laboratory, All India Network Project on Pesticide Residues, Indian Council of Agricultural Research-Indian Agricultural Research Institute, New Delhi 110 012, India.
Food Chem. 2023 Sep 15;420:136103. doi: 10.1016/j.foodchem.2023.136103. Epub 2023 Apr 9.
Black tea samples (390) collected from local markets situated in different locations of India were monitored for the residues of 386 pesticides using QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) based extraction and analysis by gas and liquid chromatography tandem mass spectrometry (GC-MS/MS and LC-MS/MS). Residues of seventeen pesticides were detected, of which propargite, cypermethrin, and novaluron showed the highest % positive detections. A comparison of the concentrations of the detected pesticide residues with the available national and international maximum residue limits (MRLs) showed that seven samples exceeded the Indian MRLs while no sample was found to exceed the CODEX MRLs. The risk due to the detected pesticide levels evaluated in terms of hazard quotient (HQ) and hazard index (HI) was found to be very low (<1), suggesting that the pesticide residues in the tea were safe for consumption by Indian adults and children.
从印度不同地区的当地市场采集了 390 个红茶样本，使用 QuEChERS（快速、简单、廉价、有效、坚固、安全）提取法，并通过气相色谱-串联质谱（GC-MS/MS）和液相色谱-串联质谱（LC-MS/MS）进行了 386 种农药残留监测。检测到 17 种农药残留，其中丙炔螨特、氯菊酯和除虫脲的阳性检出率最高。将检测到的农药残留浓度与现有的国家和国际最大残留限量（MRLs）进行比较，结果显示 7 个样本超过了印度 MRLs，而没有样本超过 CODEX MRLs。根据危害商数（HQ）和危害指数（HI）评估的检测农药水平的风险非常低（<1），这表明茶叶中的农药残留对印度成年人和儿童的食用是安全的。
