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Processing Technologies for the Extraction of Value-Added Bioactive Compounds from Tea. FOOD ENGINEERING REVIEWS 2023. [DOI: 10.1007/s12393-023-09338-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Sustainable applications of polyhydroxyalkanoates in various fields: A critical review. Int J Biol Macromol 2022; 221:1184-1201. [PMID: 36113591 DOI: 10.1016/j.ijbiomac.2022.09.098] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/06/2022] [Accepted: 09/10/2022] [Indexed: 01/23/2023]
Abstract
PHA is one of the most promising candidates in bio-polymer family which is biodegradable and environment-friendly in nature. In recent years, it has been applied as a biodegradable alternative for petroleum-based plastic across different domains. In literature, several research groups have scrutinised the biocompatibility and biodegradability of PHA in both in vivo settings as well as in in vitro conditions. Microbial yield polyhydroxyalkanoates (PHAs) are promoted at present as biodegradable plastics. On the other hand, only a limited number of products is being commercially manufactured out of PHAs (e.g., bottles). A succession of microbes (prokaryotes in addition to eukaryotes) has been identified as potential candidates that can disintegrate PHAs. These materials have been successfully employed in packaging industry, medical devices and implants, moulded goods, paper coatings, adhesives, performance additives, mulch films, non-woven fabrics, etc. The present paper reviews and focuses on the potential applications of PHA and its derivatives in different industries.
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Sergazina M, Vazquez L, Llompart M, Dagnac T. Occurrence of Fungicides in Vineyard and the Surrounding Environment. Molecules 2021; 26:molecules26206152. [PMID: 34684732 PMCID: PMC8537801 DOI: 10.3390/molecules26206152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/21/2022] Open
Abstract
Seventeen fungicides were determined in different matrices from vineyard areas, including vine leaves, soils, grapes and water, using gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). For leaf analysis, ultrasound-assisted extraction (UAE) was performed evaluating different solvents. UAE was compared with other extraction techniques such as vortex extraction (VE) and matrix solid-phase dispersion (MSPD). The performance of the UAE method was demonstrated on vine leaf samples and on other types of samples such as tea leaves, underlining its general suitability for leaf crops. As regards other matrices, soils were analyzed by UAE and microwave-assisted extraction (MAE), grapes by UAE and waters by SPE using cork as the sorbent. The proposed method was applied to 17 grape leaf samples in which 14 of the target fungicides were detected at concentrations up to 1000 μg g−1. Furthermore, the diffusion and transport of fungicides was demonstrated not only in crops but also in environmental matrices.
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Affiliation(s)
- Meruyert Sergazina
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
- Department of Chemistry, Institute of Natural Science and Geography, Abai Kazakh National Pedagogical University, Almaty 050010, Kazakhstan
| | - Lua Vazquez
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
| | - Maria Llompart
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
- Correspondence: (M.L.); (T.D.)
| | - Thierry Dagnac
- Galician Agency for Food Quality—Agronomic Research Centre (AGACAL-CIAM), Unit of Organic Contaminants, Apartado 10, E-15080 A Coruña, Spain
- Correspondence: (M.L.); (T.D.)
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Bae JW, Kwon WS. The deleterious toxic effects of bifenthrin on male fertility. Reprod Toxicol 2021; 101:74-80. [PMID: 33713777 DOI: 10.1016/j.reprotox.2021.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/26/2021] [Accepted: 03/02/2021] [Indexed: 01/16/2023]
Abstract
Bifenthrin (BF), a broad-spectrum synthetic pyrethroid insecticide, has been generally used to eradicate harmful insects. However, according to the U.S. EPA, BF has been classified as a "Class C" carcinogenic ingredient. Furthermore, a previous study reported that BF was considered as endocrine-disrupting chemicals and causes reproductive toxicity in mammals. Despite the various effects of BF, there is a scarcity of studies about its adverse effects on male fertility. Therefore, this study was conducted to determine the effects of BF on sperm functions at various concentrations (0.1, 1, 10, and 100 μM), including a control. Sperm motility and kinematics, capacitation status, intracellular ATP levels, cell viability, PKA activation, and protein tyrosine phosphorylation were measured. Moreover, fertilization and early embryonic development were examined through in vitro fertilization. Results showed that sperm motility and kinematic parameters were significantly decreased at a high BF concentration. Consequently, the sperm capacitation status exhibited significant alteration according to the treatment concentration. Intracellular ATP levels were significantly decreased at 10 and 100 μM treatment concentrations. Moreover, the levels of phospho-PKA substrates were significantly increased in a dose-dependent manner. In contrast, the levels of phospho-tyrosine substrates were significantly decreased at 10 and 100 μM treatment concentrations. BF treatment also diminished the rate of blastocyst formation. Altogether, our results demonstrated that BF causes detrimental effects on sperm function and can influence fertilization. Therefore, our study results might be helpful in understanding the adverse effects of BF on male fertility.
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Affiliation(s)
- Jeong-Won Bae
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju, Gyeongsangbuk-do 37224, Republic of Korea
| | - Woo-Sung Kwon
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju, Gyeongsangbuk-do 37224, Republic of Korea; Department of Animal Biotechnology, Kyungpook National University, Sangju, Gyeongsangbuk-do 37224, Republic of Korea.
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Farajzadeh MA, Abbaspour M, Kazemian R, Afshar Mogaddam MR. Preparation of a new three-component deep eutectic solvent and its use as an extraction solvent in dispersive liquid-liquid microextraction of pesticides in green tea and herbal distillates. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:1904-1912. [PMID: 31825526 DOI: 10.1002/jsfa.10200] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 11/11/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND A new solvent, deep eutectic solvent, in which there is growing interest, has been prepared and used as an extraction solvent in the dispersive liquid-liquid method of microextraction. To prepare the solvent, dichloroacetic acid, l-menthol, and n-butanol are mixed at a molar ratio of 4:1:1 and the deep eutectic solvent is formed after heating. Then a dispersive liquid-liquid microextraction method using the prepared solvent is used for the extraction and preconcentration of some pesticides from an aqueous sample. To carry out the procedure, the deep eutectic solvent is mixed with methanol and rapidly injected by a syringe into the aqueous sample containing the analytes. After centrifuging, an aliquot of the sedimented phase is injected into the gas chromatograph. The influence of several variables on the extraction efficiency was investigated and optimized. RESULTS Extraction recoveries and enrichment factors were obtained in the ranges of 53-86% and 1760-2853, respectively. The intra- (n = 6) and inter-day (n = 5) precision of the method was satisfactory, with relative standard deviations ≤ 7% obtained at two concentrations of 10 and 50 μg L-1 of each analyte. Moreover, detection and quantification limits for the target analytes were obtained in the ranges of 0.11-0.23 and 0.38-0.74 μg L-1 , respectively. CONCLUSION Different samples, including green tea, rose water, lemon balm, mint, and pussy willow distillates were analyzed successfully using the method that was developed, and chlorpyrifos was found in rose water at a concentration of 17 ± 1 μg L-1 (n = 3). © 2019 Society of Chemical Industry.
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Affiliation(s)
- Mir Ali Farajzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Engineering Faculty, Near East University, Nicosia, North Cyprus, Mersin, Turkey
| | - Maryam Abbaspour
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Roya Kazemian
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Oxidation Behavior of Insecticide Azoxystrobin and its Voltammetric Determination Using Boron-doped Diamond Electrode. ELECTROANAL 2019. [DOI: 10.1002/elan.201800647] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Ngo YL, Lau CH, Chua LS. Review on rosmarinic acid extraction, fractionation and its anti-diabetic potential. Food Chem Toxicol 2018; 121:687-700. [PMID: 30273632 DOI: 10.1016/j.fct.2018.09.064] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/05/2018] [Accepted: 09/26/2018] [Indexed: 01/02/2023]
Abstract
Rosmarinic acid is a bioactive phytochemical that can be found in many herbs as ethnomedicines. It possesses remarkable pharmacological activities, and thus leading to its exploration as a therapeutic drug in diabetes treatment recently. This article reviews the extraction and fractionation techniques for plant-based natural rosmarinic acid and its anti-diabetic potential based on literature data published in journals, books, and patents from 1958 to 2017. Factors affecting the performance of rosmarinic acid extraction and fractionation such as operating temperature, time, solvent to sample ratio and eluent system are compiled and discussed in detail. The inhibitory action of rosmarinic acid against sugar digestive enzymes, and protective action towards pancreatic β-cell dysfunction and glucolipotoxicity mediated oxidative stress are also critically reviewed. The optimal parameters are largely dependent on the applied extraction and fractionation techniques, as well as the nature of plant samples. Previous studies have proven the potent role of rosmarinic acid to control plasma glucose level and increase insulin sensitivity in hyperglycemia. Although rosmarinic acid is readily absorbed by human body, its mechanism after consumption is remained unclear. Intensive studies should be well planned to determine the dosage and toxicity level of rosmarinic acid for efficacy and safe consumption.
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Affiliation(s)
- Yi Lei Ngo
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Cher Haan Lau
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Lee Suan Chua
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia.
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Jiao W, Hu Y, Ge G, Li J, Xiao Y, Cai H, He L, Hua R, Sun J, Hou R. Comparison of the Metabolic Behaviors of Six Systemic Insecticides in a Newly Established Cell Suspension Culture Derived from Tea ( Camellia sinensis L.) Leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8593-8601. [PMID: 30074784 DOI: 10.1021/acs.jafc.8b02417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of an in vitro cell suspension to study insecticide metabolism is a simpler strategy compared to using intact plants, especially for a difficult matrix such as tea. In this study, a sterile tea leaf callus was inoculated into B5 liquid media with 2,4-dichlorophenoxyacetic acid (2,4-D, 1.0 mg L-1) and Kinetin (KT, 0.1 mg L-1). After 3-4 subcultures (28 days each), a good cell suspension was established. Utilizing these cultures, the metabolic behaviors of six insecticides, including two organophosphates (dimethoate, omethoate) and four neonicotinoids (thiamethoxam, imidacloprid, acetamiprid, and imidaclothiz) were compared. The results showed that thiamethoxam, dimethoate, and omethoate were easily metabolized by tea cells, with degradation ratios after 75 days of 55.3%, 90.4%, and 100%, respectively. Seven metabolites of thiamethoxan and two metabolites of dimethoate were found in treated cell cultures using mass-spectrometry, compared to only two metabolites for thiamethoxam and one for dimethoate in treated intact plants.
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Affiliation(s)
- Weiting Jiao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
- School of Resource & Environment of Anhui Agricultural University , Key Laboratory of Agri-food Safety of Anhui Province , Hefei 230036 , P. R. China
| | - Yizheng Hu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Guoqin Ge
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Jianchao Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Yu Xiao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
- Anhui Entry-Exit Inspection and Quarantine Bureau of the P. R. China , Hefei 230022 , P. R. China
| | - Huimei Cai
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Lili He
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Rimao Hua
- School of Resource & Environment of Anhui Agricultural University , Key Laboratory of Agri-food Safety of Anhui Province , Hefei 230036 , P. R. China
| | - Jun Sun
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
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Malhat F, Kasiotis KM, Shalaby S. Magnitude of cyantraniliprole residues in tomato following open field application: pre-harvest interval determination and risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:116. [PMID: 29404776 DOI: 10.1007/s10661-018-6496-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 01/22/2018] [Indexed: 05/14/2023]
Abstract
Cyantraniliprole is an anthranilic diamide insecticide, belonging to the ryanoid class, with a broad range of applications against several pests. In the presented work, a reliable analytical technique employing high-performance liquid chromatography coupled with photodiode array detector (HPLC-DAD) for analyzing cyantraniliprole residues in tomato was developed. The method was then applied to field-incurred tomato samples collected after applications under open field conditions. The latter aimed to ensure the safe application of cyantraniliprole to tomato and contribute the derived residue data to the risk assessment under field conditions. Sample preparation involved a single step extraction with acetonitrile and sodium chloride for partitioning. The extract was purified utilizing florisil as cleanup reagent. The developed method was further evaluated by comparing the analytical results with those obtained using the QuEChERS technique. The novel method outbalanced QuEChERS regarding matrix interferences in the analysis, while it met all guideline criteria. Hence, it showed excellent linearity over the assayed concentration and yielded satisfactory recovery rate in the range of 88.9 to 96.5%. The half-life of degradation of cyantraniliprole was determined at 2.6 days. Based on the Codex MRL, the pre-harvest interval (PHI) for cyantraniliprole on tomato was 3 days, after treatment at the recommended dose. To our knowledge, the present work provides the first record on PHI determination of cyantraniliprole in tomato under open field conditions in Egypt and the broad Mediterranean region.
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Affiliation(s)
- Farag Malhat
- Department of Pesticides Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Dokki, Giza, 12618, Egypt.
| | - Konstantinos M Kasiotis
- Department of Pesticides Control and Phytopharmacy, Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Street, Kifissia, 14561, Athens, Greece.
| | - Shehata Shalaby
- Department of Pests and Plant Protection, National Research Center, Dokki, Giza, Egypt
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Wang J, Jiao C, Li M, Wang X, Wang C, Wu Q, Wang Z. Porphyrin based porous organic polymer modified with Fe 3O 4 nanoparticles as an efficient adsorbent for the enrichment of benzoylurea insecticides. Mikrochim Acta 2017; 185:36. [PMID: 29594549 DOI: 10.1007/s00604-017-2542-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 11/09/2017] [Indexed: 12/25/2022]
Abstract
Porphyrin-based porous organic polymers (P-POPs) are amorphous polymers linked by strong covalent bonds between the porphyrin subunits that act as building blocks. The authors describe a magnetic P-POP that possesses high surface area, a highly porous structure, and strong magnetism. The MP-POP was employed as a magnetic sorbent for the extraction of benzoylurea insecticides from cucumber and tomato samples prior to their determination by HPLC. The sorbent has a typical sorption capacity of 1.90-2.00 mg∙g-1. The method exhibits a good linear range (0.8-160 ng·g-1), low limits of detection (0.08-0.2 ng·g-1), and high method recoveries (81.8-103.5%) for cucumber and tomato samples. The MP-POP has different adsorption capabilities for the benzoylurea insecticides, phenylurea herbicides and phenols compounds, and the adsorption mechanism is found to be based on π-stacking, hydrogen-bonding, and hydrophobic interactions. Graphical abstract A novel magnetic porphyrin-based porous organic polymer was fabricated and used as the adsorbent for the efficient extraction of benzoylurea insecticides.
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Affiliation(s)
- Juntao Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Caina Jiao
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Menghua Li
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Xiaolan Wang
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Chun Wang
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China.
| | - Qiuhua Wu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China.,College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Zhi Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China. .,College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, China.
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Lee HS, Kim SW, Abd El-Aty AM, Chung HS, Kabir MH, Rahman MM, Jeong JH, Chang BJ, Shin HC, Shim JH. Liquid chromatography-tandem mass spectrometry quantification of acetamiprid and thiacloprid residues in butterbur grown under regulated conditions. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1055-1056:172-177. [PMID: 28494350 DOI: 10.1016/j.jchromb.2017.04.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/01/2017] [Accepted: 04/12/2017] [Indexed: 11/18/2022]
Abstract
An analytical method was developed to quantify the residual levels of the neonicotinoid insecticides, acetamiprid and thiacloprid, in field-incurred butterbur samples using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Samples were extracted with acetonitrile and partitioned with dichloromethane. After partitioning, purification was conducted using a Florisil® cartridge. Linearity of a matrix-matched calibration curve of the two compounds over a concentration range of 0.004-0.4μg/g was excellent, with determination coefficients (R2)≥0.9998. The limits of detection (LOD) and quantitation (LOQ) for both acetamiprid and thiacloprid were 0.0006 and 0.002mg/kg, respectively. The average recoveries for acetamiprid and thiacloprid at two spiking levels (0.02 and 0.1mg/kg, i.e., 10×LOQ and 50×LOQ) were between 78.23 to 82.17%, with relative standard deviations (RSDs)≤7.22%. The method was successfully applied to field-incurred samples treated with a commercial pesticide product, either once (zero or 7 days before harvest) or twice (0 and 7, 7 and 14, or 14 and 21 days before harvest). The highest and lowest residues were obtained for the 7 and 0 days' treatment and the 21 and 14 days' treatment, respectively. The developed method is simple and accurate and can be extrapolated to other leafy vegetables.
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Affiliation(s)
- Han Sol Lee
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Sung-Woo Kim
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea
| | - A M Abd El-Aty
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea; Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt.
| | - Hyung Suk Chung
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Md Humayun Kabir
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Md Musfiqur Rahman
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Byung-Joon Chang
- Department of Veterinary Anatomy, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Ho-Chul Shin
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Jae-Han Shim
- Natural Products Chemistry Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 500-757, Republic of Korea.
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Utilizing a novel sorbent in the solid phase extraction for simultaneous determination of 15 pesticide residues in green tea by GC/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1023-1024:44-54. [PMID: 27183089 DOI: 10.1016/j.jchromb.2016.04.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 04/09/2016] [Accepted: 04/30/2016] [Indexed: 11/20/2022]
Abstract
Pesticide residues exceeding standard in green tea is a widespread problem of the world's attention, containing organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), and pyrethroids. In this research, three dimensionally honeycomb Mg-Al layered double oxide (TDH-Mg-Al-LDO) combined with graphitized carbon black (GCB), packed as a column, was used as a novel solid phase extraction sorbent, applying in simultaneous determination of 15 pesticide residues in green tea coupled with GC-MS. Compared with different type of SPE column, it showed that TDH-Mg-Al-LDO exhibited great advantages in the extraction of 15 pesticide residues from green tea, which was seldom reported before. Different experiment conditions, such as combination order of Mg-Al-LDO and GCB, dosage of sorbents, type and volume of eluting solvent were thoroughly studied and optimized. The limits of detection (LODs) of 15 pesticides ranged from 0.9 to 24.2ng/g and the limits of quantifications (LOQs) were ranging from 3.0 to 80.0ng/g. The recoveries using this method at three spiked concentration levels (10, 100 and 500ng/g for Fenthion, P,P'-DDE, O,P'-DDT, P,P'-DDD and Bifenthrin, 100, 500 and 2000ng/g for the others) range from 71.1 to 119.0%. The relative standard deviation (RSD) was from 0.1 to 7.6% in all case. The result indicated that the proposed analytical method had been successfully applied for the simultaneous determination of 15 pesticide residues in commercial green tea.
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Cao Y, Tang H, Chen D, Li L. A novel method based on MSPD for simultaneous determination of 16 pesticide residues in tea by LC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 998-999:72-9. [DOI: 10.1016/j.jchromb.2015.06.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 02/05/2023]
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14
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Feng X, He Z, Wang L, Peng Y, Luo M, Liu X. Multiresidue analysis of 36 pesticides in soil using a modified quick, easy, cheap, effective, rugged, and safe method by liquid chromatography with tandem quadruple linear ion trap mass spectrometry. J Sep Sci 2015; 38:3047-54. [DOI: 10.1002/jssc.201500412] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 05/26/2015] [Accepted: 05/29/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Xue Feng
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
- College of Food Science and Technology; Henan Agricultural University; Zhengzhou P.R. China
| | - Zeying He
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
| | - Lu Wang
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
| | - Yi Peng
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
| | - Ming Luo
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
| | - Xiaowei Liu
- Ministry of Agriculture; Agro-Environmental Protection Institute; Tianjin P.R. China
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15
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Guo W, Bian Z, Zhang D, Tang G, Liu W, Wang J, Li Z, Yang F. Simultaneous determination of herbicide residues in tobacco using ultraperformance convergence chromatography coupled with solid-phase extraction. J Sep Sci 2015; 38:858-63. [DOI: 10.1002/jssc.201401063] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Weiyun Guo
- College of Food Science and Engineering; Northwest A&F University Shannxi China
- College of Food and Biological engineering; Xuchang University; Henan China
| | - Zhaoyang Bian
- China National Tobacco Quality Supervision and Test Center; Zhengzhou High and New Technology Industries Development Zone; Henan China
| | - Daohong Zhang
- College of Food Science and Engineering; Northwest A&F University Shannxi China
| | - Gangling Tang
- China National Tobacco Quality Supervision and Test Center; Zhengzhou High and New Technology Industries Development Zone; Henan China
| | - Wei Liu
- College of Food Science and Engineering; Northwest A&F University Shannxi China
| | - Jianlong Wang
- College of Food Science and Engineering; Northwest A&F University Shannxi China
| | - Zhonghao Li
- China National Tobacco Quality Supervision and Test Center; Zhengzhou High and New Technology Industries Development Zone; Henan China
| | - Fei Yang
- China National Tobacco Quality Supervision and Test Center; Zhengzhou High and New Technology Industries Development Zone; Henan China
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16
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Ma H, Li Y, Zhang H, Shah SM, Chen J. Salt-assisted dispersive liquid–liquid microextraction coupled with programmed temperature vaporization gas chromatography–mass spectrometry for the determination of haloacetonitriles in drinking water. J Chromatogr A 2014; 1358:14-9. [DOI: 10.1016/j.chroma.2014.06.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 06/06/2014] [Accepted: 06/06/2014] [Indexed: 12/01/2022]
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17
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Cho SK, Abd El-Aty AM, Rahman MM, Choi JH, Shim JH. Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography. Food Chem 2014; 165:532-9. [PMID: 25038708 DOI: 10.1016/j.foodchem.2014.05.145] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 04/28/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
Abstract
A method for determining eight pesticide (cyhalothrin, flufenoxuron, fenitrothion, EPN, bifenthrin, difenoconazole, triflumizole, and azoxystrobin) residues in made green tea as well as a tea infusion (under various brewing water temperatures; 60, 80, and 100°C) using gas chromatography (GC) micro-electron capture detector (μECD) was developed and validated. The extraction method adopted the relatively commonly used approach of solid sample hydration, with the green tea hydrated before being extracted through salting out with acetonitrile followed by a cleanup procedure. The analytes were confirmed using GC-coupled to tandem mass spectrometry (GC/MS/MS) with a triple quadrupole. The linearity of the calibration curves yielded determination coefficients (R(2)) >0.995. Recoveries were carried out using blank samples spiked with all analytes at two levels. The results demonstrated that all pesticides were recovered within the range of 77-116% with a relative standard deviation (RSD) ⩽14%. The quantification limits of 0.015-0.03 mg/kg were lower than the maximum residue limits (MRLs) set by the Korea Food and Drug Administration (KFDA) for all analytes (0.05-10mg/kg). The infusion study indicated that cyhalothrin, flufenoxuron, and bifenthrin did not infuse into the tea brew from the made tea. Increases in brewing time resulted in increased transfer of azoxystrobin, fenitrothion, and difenoconazole from the made tea to the brew; however, this was not the case with triflumizole or EPN. We conclude that transfer of pesticides appeared to be dependent on their water solubilities and drinking a cup of tea is recommended to be at a water temperature of 60°C.
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Affiliation(s)
- Soon-Kil Cho
- National Agricultural Products Quality Management Service, Products Safety Inspection Laboratory, Gwangsan-Gu, Gwangju, Republic of Korea
| | - A M Abd El-Aty
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Republic of Korea; Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt.
| | - Md Musfiqur Rahman
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Jeong-Heui Choi
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Jae-Han Shim
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Republic of Korea.
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18
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Determination of fungicides in white grape bagasse by pressurized liquid extraction and gas chromatography tandem mass spectrometry. J Chromatogr A 2014; 1343:18-25. [DOI: 10.1016/j.chroma.2014.03.057] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 03/20/2014] [Accepted: 03/21/2014] [Indexed: 11/22/2022]
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19
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Xue J, Li H, Liu F, Xue J, Chen X, Zhan J. Transfer of difenoconazole and azoxystrobin residues from chrysanthemum flower tea to its infusion. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:666-75. [PMID: 24405376 DOI: 10.1080/19440049.2014.882020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Investigations of the transfer of pesticide residues from tea to its infusion can be important in the assessment of the possible health benefits of tea consumption. In this work the transfer of difenoconazole and azoxystrobin residues from chrysanthemum tea to its infusion was investigated at different water temperatures, infusion intervals and times. The transfer percentages were in the range of 18.7-51.6% for difenoconazole and of 38.1-71.2% for azoxystrobin, and increased considerably with longer infusion intervals. The results indicated that azoxystrobin with a lower octanol-water partition coefficient of 2.5, showed a higher transfer than that of difenoconazole with a relatively high octanol-water partition coefficient of 4.4. Water temperature had no significant effect on the transfer of the two residues, and no obvious loss of difenoconazole and azoxystrobin occurred during the infusion process. The concentrations in the infusions decreased gradually from 0.67 to 0.30 μg kg(-1) for difenoconazole and from 2.3 to 0.46 μg kg(-1) for azoxystrobin after five infusions. To assess the potential health risk, the values of estimate expose risk were calculated to be 0.016 for difenoconazole and 0.0022 for azoxystrobin, meaning the daily residue intake of the two analytes from chrysanthemum tea was safe. This research may help assure food safety and identify the potential exposure risks from pesticides in chrysanthemum that may be health concerns.
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Affiliation(s)
- Jiaying Xue
- a Department of Applied Chemistry , College of Science, China Agricultural University , Beijing 100193 , China
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20
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Li X, Zhang Z, Li P, Zhang Q, Zhang W, Ding X. Determination for major chemical contaminants in tea (Camellia sinensis) matrices: A review. Food Res Int 2013. [DOI: 10.1016/j.foodres.2012.12.048] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Qing X, Wu H, Nie C, Li Y, Yan X, Zhang X, Yin X, Yu R. HPLC-DAD data coupled with second-order calibration method applied to food analysis: Simultaneous determination of six benzoylurea insecticides in various fruit samples by selecting time region of chromatogram. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4892-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Rajski Ł, Lozano A, Belmonte-Valles N, Uclés A, Uclés S, Mezcua M, Fernandez-Alba AR. Comparison of three multiresidue methods to analyse pesticides in green tea with liquid and gas chromatography/tandem mass spectrometry. Analyst 2013; 138:921-31. [DOI: 10.1039/c2an35995b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Tao L, Chen M, Collins E, Lu C. Simultaneous quantitation of seven pyrethroid metabolites in human urine by capillary gas chromatography-mass spectrometry. J Sep Sci 2012; 36:773-80. [DOI: 10.1002/jssc.201200655] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/18/2012] [Accepted: 10/18/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Lin Tao
- Department of Environmental Health; Harvard School of Public Health; Boston; MA; USA
| | - Mei Chen
- Department of Environmental Health; Harvard School of Public Health; Boston; MA; USA
| | - Erin Collins
- Department of Environmental Health; Harvard School of Public Health; Boston; MA; USA
| | - Chensheng Lu
- Department of Environmental Health; Harvard School of Public Health; Boston; MA; USA
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24
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Gas chromatography–triple-quadrupole mass spectrometry for analysis of selected polyhalogenated pollutants in plants. Comparison of extraction methods. Anal Bioanal Chem 2012; 405:389-400. [DOI: 10.1007/s00216-012-6465-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/27/2012] [Accepted: 09/30/2012] [Indexed: 10/27/2022]
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25
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Oellig C, Schwack W. Planar solid phase extraction clean-up for pesticide residue analysis in tea by liquid chromatography–mass spectrometry. J Chromatogr A 2012; 1260:42-53. [DOI: 10.1016/j.chroma.2012.08.088] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/27/2012] [Accepted: 08/29/2012] [Indexed: 11/27/2022]
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26
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Cajka T, Sandy C, Bachanova V, Drabova L, Kalachova K, Pulkrabova J, Hajslova J. Streamlining sample preparation and gas chromatography–tandem mass spectrometry analysis of multiple pesticide residues in tea. Anal Chim Acta 2012; 743:51-60. [DOI: 10.1016/j.aca.2012.06.051] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2012] [Revised: 06/04/2012] [Accepted: 06/28/2012] [Indexed: 10/28/2022]
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27
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Rapid Determination of Organonitrogen, Organophosphorus and Carbamate Pesticides in Tea by Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry (UPLC-MS/MS). FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9465-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Du G, Xiao Y, Yang HR, Wang L, Song YL, Wang YT. Rapid determination of pesticide residues in herbs using selective pressurized liquid extraction and fast gas chromatography coupled with mass spectrometry. J Sep Sci 2012; 35:1922-32. [DOI: 10.1002/jssc.201200169] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 03/24/2012] [Accepted: 04/17/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Gang Du
- Institute of Chinese Medical Sciences; University of Macau; Taipa Macao SAR China
- Sichuan Provincial Institute for Food and Drug Control; Chengdu Sichuan China
| | - Yao Xiao
- College of Pharmacy; Sichuan University; Chengdu Sichuan China
| | - Hua-Rong Yang
- Pharmaceutical Factory of Chengdu Huasun Group Inc., Ltd; Chengdu Sichuan China
| | - Li Wang
- Pharmaceutical Factory of Chengdu Huasun Group Inc., Ltd; Chengdu Sichuan China
| | - Yue-lin Song
- Institute of Chinese Medical Sciences; University of Macau; Taipa Macao SAR China
| | - Yi-Tao Wang
- Institute of Chinese Medical Sciences; University of Macau; Taipa Macao SAR China
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29
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Pesticides in seaweed: optimization of pressurized liquid extraction and in-cell clean-up and analysis by liquid chromatography–mass spectrometry. Anal Bioanal Chem 2012; 404:173-81. [DOI: 10.1007/s00216-012-6106-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/27/2012] [Accepted: 05/07/2012] [Indexed: 10/28/2022]
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30
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Yarita T, Aoyagi Y, Otake T. Evaluation of pressurized liquid extraction for determination of organophosphorus and pyrethroid pesticides in soybean. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2012; 47:942-8. [PMID: 22938578 DOI: 10.1080/03601234.2012.706559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The purpose of this study was to develop an analytical method for the determination of organophosphorus and pyrethroid pesticides in soybean by pressurized liquid extraction (PLE). Two organic solvents, acetone and acetonitrile, were evaluated as extraction solvents. In both cases, the amount of extract was enhanced with increasing extraction temperature. The extracts obtained using acetonitrile were measured by gas chromatography/mass spectrometry after a cleanup process based on the analytical method for the Japanese Positive List System for Agricultural Chemicals Remaining in Foods. The effect of extraction temperature (range: 40- 130°C) on extraction efficiency was evaluated by a recovery study using 21 organophosphorus pesticides and 10 pyrethroid pesticides as target analytes and acetonitrile as the solvent. The results indicated that at 130°C, some organophosphorus pesticides might be degraded, whereas extraction temperatures between 70°C and 100°C were optimal. Next, a prepared sample containing fenitrothion and permethrin was analyzed. Although the sample was not soaked in water prior to analysis, PLE provided analytical results comparable to those obtained by solvent extraction with homogenization. Therefore, PLE is considered a simple and alternative technique for the extraction of organophosphorus and pyrethroid pesticides in soybean.
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Affiliation(s)
- Takashi Yarita
- National Metrology Institute of Japan-NMIJ, National Institute of Advanced Industrial Science and Technology-AIST, Ibaraki, Japan.
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31
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Li Y, Dong F, Liu X, Xu J, Li J, Kong Z, Chen X, Zheng Y. Enantioselective determination of triazole fungicide tebuconazole in vegetables, fruits, soil and water by chiral liquid chromatography/tandem mass spectrometry. J Sep Sci 2011; 35:206-15. [DOI: 10.1002/jssc.201100674] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 10/02/2011] [Accepted: 10/24/2011] [Indexed: 11/06/2022]
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32
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Choi JH, Yoon HJ, Do JA, Park YC, Kim JH, Choi D. An analytical method for prohexadione in Chinese cabbage and apple. Biomed Chromatogr 2011; 25:493-7. [DOI: 10.1002/bmc.1472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Liu X, Wang X, Xu J, Dong F, Song W, Zheng Y. Determination of tebuconazole, trifloxystrobin and its metabolite in fruit and vegetables by a Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) method using gas chromatography with a nitrogen-phosphorus detector and ion trap mass spectrometry. Biomed Chromatogr 2011; 25:1081-90. [DOI: 10.1002/bmc.1575] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 10/10/2010] [Accepted: 10/11/2010] [Indexed: 11/06/2022]
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34
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Liu J, Yang Y, Yang Y, Zhang Y, Liu W. Disrupting effects of bifenthrin on ovulatory gene expression and prostaglandin synthesis in rat ovarian granulosa cells. Toxicology 2011; 282:47-55. [DOI: 10.1016/j.tox.2011.01.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 01/04/2011] [Accepted: 01/10/2011] [Indexed: 12/13/2022]
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35
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Hanafi A, Garau VL, Caboni P, Sarais G, Cabras P. Minor crops for export: a case study of boscalid, pyraclostrobin, lufenuron and lambda-cyhalothrin residue levels on green beans and spring onions in Egypt. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2010; 45:493-500. [PMID: 20574869 DOI: 10.1080/03601234.2010.493466] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Dissipation rates of boscalid [2-chloro-N-(4' -chlorobiphenyl-2-yl)nicotinamide], pyraclostrobin [methyl 2-[1-(4-chlorophenyl) pyrazol-3-yloxymethyl]-N-methoxycarbanilate], lufenuron [(RS)-1-[2,5-dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl]-3-(2,6-difluorobenzoyl)urea] and lambda-cyhalothrin [(R)-cyano(3-phenoxyphenyl)methyl (1S,3S)-rel-3-[(1Z)-2-chloro-3,3,3-trifluoro-1-propenyl]-2,2-dimethylcyclopropanecarboxylate] in green beans and spring onions under Egyptian field conditions were studied. Field trials were carried out in 2008 in a Blue Nile farm, located at 70 kilometer (km) from Cairo (Egypt). The pesticides were sprayed at the recommended rate and samples were collected at pre-determined intervals. After treatment (T(0)) the pesticide residues in green beans were 7 times lower than in spring onions. This is due to a different structure of vegetable plant in the two crops. In spring onions, half-life (t(1/2)) of pyraclostrobin and lufenuron was 3.1 days and 9.8 days respectively. At day 14th (T(14)) after treatment boscalid residues were below the Maximum Residue Limit (MRL) (0.34 versus 0.5 mg/kg), pyraclostrobin and lambda -cyhalothrin residues were not detectable (ND), while lufenuron residues were above the MRL (0.06 versus 0.02 mg/kg). In green beans, at T(0), levels of boscalid, lufenuron and lambda -cyhalothrin were below the MRL (0.28 versus 2 mg/kg; ND versus 0.02 mg/kg; 0.06 versus 0.2 mg/kg, respectively) while, after 7 days treatment (T(7)) pyraclostrobin residues were above the MRL (0.03 versus 0.02 mg/kg). However, after 14 days the residue level could go below the MRL (0.02 mg/kg), as observed in spring onions.
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Affiliation(s)
- Ahmad Hanafi
- Plant Protection Department, Ain Shams University, Cairo, Egypt
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36
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García-Rodríguez D, Carro-Díaz A, Lorenzo-Ferreira R, Cela-Torrijos R. Determination of pesticides in seaweeds by pressurized liquid extraction and programmed temperature vaporization-based large volume injection–gas chromatography–tandem mass spectrometry. J Chromatogr A 2010; 1217:2940-9. [DOI: 10.1016/j.chroma.2010.02.061] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Revised: 02/18/2010] [Accepted: 02/24/2010] [Indexed: 01/29/2023]
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37
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Hunter RE, Riederer AM, Ryan PB. Method for the determination of organophosphorus and pyrethroid pesticides in food via gas chromatography with electron-capture detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:1396-1402. [PMID: 20073464 DOI: 10.1021/jf9028859] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have developed a rapid, high-throughput, accurate, multiresidue method for the analysis of selected organophosphorus and pyrethroid pesticides in a variety of food samples suitable for use in public health and epidemiologic investigations of high-use pesticides using modifications of existing methods. The procedure involves a pesticide extraction from the food sample with acetonitrile followed by a salting-out with NaCl and cleanup of the extract with a multilayer solid-phase extraction cartridge composed of a Supelclean ENVI-CARB-II top layer and a primary-secondary amine bottom layer separated by a polyethylene frit. To evaluate the method, we performed fortification studies at 50, 100, and 200 ng/g for 3 organophosphorus and 4 pyrethroid pesticides in 16 different foods. Instrumental analysis was carried out by capillary gas chromatography with electron-capture detection (GC-ECD). Confirmatory analysis was performed by GC coupled with mass spectrometry (MS) in the selected-ion monitoring (SIM) mode. Average recoveries for each fortification level ranged from 49 to 146% with 80% of recoveries between 80 and 120%.
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Affiliation(s)
- Ronald E Hunter
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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38
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Square-Wave Adsorptive Stripping Voltammetry for Trace Determination of Dimoxystrobin and Azoxystrobin in Potatoes and Grapes. FOOD ANAL METHOD 2009. [DOI: 10.1007/s12161-009-9109-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Khay S, Abd El-Aty AM, Choi JH, Shin EH, Shin HC, Kim JS, Chang BJ, Lee CH, Shin SC, Jeong JY, Shim JH. Simultaneous determination of pyrethroids from pesticide residues in porcine muscle and pasteurized milk using GC. J Sep Sci 2008; 32:244-51. [DOI: 10.1002/jssc.200800481] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Approaches for application of sub and supercritical fluid extraction for quantification of orbifloxacin from plasma and milk: application to disposition kinetics. Anal Chim Acta 2008; 631:108-15. [PMID: 19046687 DOI: 10.1016/j.aca.2008.10.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Revised: 10/07/2008] [Accepted: 10/08/2008] [Indexed: 11/22/2022]
Abstract
Since its extensive development in the early 1980s, SFE has attracted considerable attention as a sample-preparation procedure. However, other different sample preparation procedures, including precipitation, liquid- and/or solid-phase extraction in biological fluids, also remain in use. In this investigation, SFE was introduced to isolate and identify orbifloxacin from plasma and milk. Four parameters, including the temperature and the pressure of supercritical fluid, modifier ratios, and dynamic extraction time, were evaluated and optimized to obtain the best yield of the analyte from the biological fluids. Determinations of the orbifloxacin (OBFX) in the extracts were carried out using HPLC-FLD. The optimum conditions of the extraction process that yielded the maximum analyte extraction efficiencies were 150 degrees C vs. 60 degrees C, 250 kg cm(-2), 30% vs. 35% methanol, and 40 min vs. 20 min, for plasma and milk, respectively. The linearity of the calibration curves as well as the instrument LODs/LOQs were evaluated. Good linearity (at least r(2) > or = 0.999) of the calibration curves was obtained over the range from 0.2 to 0.01 microg mL(-1). The method showed a good recovery rate (74.2-127.73%) and precision (RSDs: 1.64-20%). The instrumental LOD and LOQ values were 0.004 microg mL(-1) vs. 0.01 microg mL(-1) or 0.006 microg mL(-1) vs. 0.02 microg mL(-1), for plasma and milk, respectively. The method was successfully applied to estimate the pharmacokinetic variables of orbifloxacin in lactating does. To the best of our knowledge, this is the first time that SFE has been applied to isolate an antimicrobial agent from biological fluids. This method is promising for clinical applications and for pharmacokinetic studies of various pharmaceuticals in biological fluids.
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