Monitoring of Pesticide Residues in Dried Medicinal Plants used for Food Materials

A method for the simultaneous analysis of pesticide multiresidues in three root/rhizome-based herbal medicines (Cnidium officinale, Rehmannia glutinosa, and Paeonia lactiflora) was developed with GC-MS/MS. To determine the concentrations of pesticide residues, 5 g of dried samples were saturated with distilled water, extracted with 10 mL of 0.1% formic acid in acetonitrile/ethyl acetate (7:3, v/v), and then partitioned using magnesium sulfate and sodium chloride. The organic layer was purified with Oasis PRiME HLB plus light, followed by a cleanup with dispersive solid-phase extraction containing alumina. The sample was then injected into GC-MS/MS (2 μL) using a pulsed injection mode at 15 psi and analyzed using multiple reaction monitoring (MRM) modes. The limit of quantitation for the 296 target pesticides was within 0.002–0.05 mg/kg. Among them, 77.7–88.5% showed recoveries between 70% and 120% with relative standard deviations (RSDs) ≤20% at fortified levels of 0.01, and 0.05 mg/kg. The analytical method was successfully applied to real herbal samples obtained from commercial markets, and 10 pesticides were quantitatively determined from these samples.

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“…officinale (75%) was higher than that in other kinds of samples (0–10%), including P . lactiflora (0%) [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

Simultaneous analytical method for 296 pesticide multiresidues in root and rhizome based herbal medicines with GC-MS/MS

2023

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Pesticide residue monitoring and risk assessment in the herbal fruits Schisandra chinensis, Lycium chinense, and Cornus officinalis in Korea

Kim

Shin

Park

et al. 2020

Food Sci Biotechnol

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Schisandra chinensis, Lycium chinense, and Cornus officinalis are cultivated in South Korea, China and Japan. Because of their beneficial biological effectiveness, the consumption of these herbs is increasing. The objective of this study was to analyze the pesticide residue levels on these herbal fruits produced in Korea. A short-and longterm risk assessment of the pesticides in herbal fruits was conducted. Pesticides were detected in most samples, and all samples with multiple residues were also noted. The average numbers of pesticides detected in the S. chinensis, L. chinense, and C. officinalis samples were 1.84, 10.28, and 5.87, respectively. The short-term and highest longterm risks, and the cumulative risk (cHI) were 0.633%, 1.14%, and 7.56% (S. chinensis), 1.0 9 10 -1 %, 1.1 9 10 -5 %, and 4.0 9 10 -5 % (L. chinense), and 2.2 9 10 -5 %, 1.6 9 10 -5 %, and 8.9 9 10 -5 % (C. officinalis). No significant health risk for consumers via herbal fruit consumption was detected.

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Monitoring of Pesticide Residues on Dried Agricultural Products

Gang¹,

Mun²,

Kim³

et al. 2017

KJPS

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The study was conducted for safety evaluation of 208 kinds of residue pesticides on 200 dried agricultural products, which are distributed in Gwangju. The method of monitoring was the second of Multi Class Pesticide Multi-residue Methods in Korean Food Code, and GC-ECD, GC-NPD, GC-MSD, and LC-MS/MS were used as evaluation equipment to analyze. The residue level in pesticides were 15.5% (31 of 200 samples) and 4 samples exceeded MRLs. 4.5 mg/kg of pyraclostrobin (MRL; 3.0 mg/kg) was detected in red pepper, 1.49 mg/kg of chlorpyrifos (MRL; 0.13 mg/kg) in daikon leaves, 38.26 mg/kg of pyridalyl (MRL; 0.25 mg/kg) in pepper leaves, 0.98 mg/kg of chlorpyrifos (MRL; 0.05 mg/kg), respectively. Pesticides were found on the 15 samples among the 21 samples of red pepper which is a fruit vegetable, and this resulted in high detection rate of 71%. In addition, pesticides were detected on chwinamul, shitake, siler divaricata, daikon leaves and others within MRLs. The frequent detected kinds of pesticides were insecticide (47.6%), fungicide (33.3%), acaricide (14.3%), nematicide (4.8%) in the order named, and pesticides were methoxyfenozide > pyraclostrobin > azoxystrobin, chlorantraniprole > novaluron, trifloxystrobin in frequent order.

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Monitoring of Pesticide Residues in Dried Medicinal Plants used for Food Materials

Cited by 4 publications

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Simultaneous analytical method for 296 pesticide multiresidues in root and rhizome based herbal medicines with GC-MS/MS

Simultaneous analytical method for 296 pesticide multiresidues in root and rhizome based herbal medicines with GC-MS/MS

Pesticide residue monitoring and risk assessment in the herbal fruits Schisandra chinensis, Lycium chinense, and Cornus officinalis in Korea

Monitoring of Pesticide Residues on Dried Agricultural Products

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