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Kim SH, Lee YH, Jeong MJ, Lee YJ, Eun HR, Kim SM, Baek JW, Noh HH, Shin Y, Choi H. Comparative Biological Half-Life of Penthiopyrad and Tebufenpyrad in Angelica Leaves and Establishment of Pre-Harvest Residue Limits (PHRLs). Foods 2024; 13:1742. [PMID: 38890969 PMCID: PMC11172131 DOI: 10.3390/foods13111742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
To prevent pesticides from exceeding maximum residue limits (MRLs) in crops during export and shipment, it is necessary to manage residue levels during the pre-harvest stages. Therefore, the Republic of Korea establishes pre-harvest residue limits (PHRLs) per crop and pesticide. This study was conducted to set PHRLs for penthiopyrad and tebufenpyrad in angelica leaves, where the exceedance rates of MRLs are expected to be high. The LOQ of the analytical method used was 0.01 mg/kg and it demonstrated good linearity, with a correlation coefficient of 0.999 or higher within the quantitation range of 0.005 to 0.5 mg/kg. The recovery and storage stability accuracy values were in the range of 94.5-111.1%, within the acceptable range (70-120%, RSD ≤ 20%). The matrix effect for both pesticides was in the medium-to-strong range, and it did not significantly impact the quantitative results as a matrix-matched calibration method was employed. Using the validated method, residue concentrations of penthiopyrad 20 (%) EC and tebufenpyrad 10 (%) EC were analyzed. Both pesticides exhibited a decreasing residue trend over time. In Fields 1-3 and their integrated results, the biological half-life was within 2.6-4.0 days for penthiopyrad and 3.0-4.2 days for tebufenpyrad. The minimum value of the regression coefficient in the dissipation curve regression equation was selected as the dissipation constant. The selected dissipation constants for penthiopyrad in Fields 1-3 and their integration were 0.1221, 0.2081, 0.2162, and 0.1960. For tebufenpyrad, the dissipation constants were 0.1451, 0.0960, 0.1725, and 0.1600, respectively. The dissipation constant was used to calculate PHRL per field. Following the principles of the PHRL proposal process, residue levels (%) on PHI dates relative to MRLs were calculated, and fields for proposing PHRLs were selected. For penthiopyrad, since the residue level (%) was less than 20%, the PHRL for Field 3 with the largest dissipation constant was proposed. For tebufenpyrad, as the residue level (%) exceeded 80%, the PHRL proposal could not established. It is deemed necessary to reassess the MRL and 'guidelines for safe use' for tebufenpyrad in angelica leaves.
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Affiliation(s)
- So-Hee Kim
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
- Residual Agrochemical Assessment Division, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea
| | - Yoon-Hee Lee
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Mun-Ju Jeong
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Ye-Jin Lee
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Hye-Ran Eun
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Su-Min Kim
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Jae-Woon Baek
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Hyun Ho Noh
- Residual Agrochemical Assessment Division, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea
| | - Yongho Shin
- Department of Applied Bioscience, Dong-A University, Busan 49315, Republic of Korea; (S.-H.K.)
| | - Hoon Choi
- Department of Life & Environmental Sciences, Wonkwang University, Iksan 54538, Republic of Korea
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Chang J, Liao F, Xiong W, Tian W, Zhang K. Unveiling the absorption, translocation, and metabolism of penthiopyrad in pakchoi under hydroponic and soil-cultivated conditions. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 201:105859. [PMID: 38685213 DOI: 10.1016/j.pestbp.2024.105859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 05/02/2024]
Abstract
The efficient use of pesticides has long been a topic of public concern, necessitating a thorough understanding of their movement in plants. This study investigates the translocation and distribution of penthiopyrad in pakchoi plants cultivated both in hydroponic and soil-cultivated conditions. Results indicate that penthiopyrad predominantly accumulates in the roots, with concentrations of 11.3-53.9 mg/kg following root application, and in the leaves, with concentrations of 2.0-17.1 mg/kg following foliar application. The bioconcentration factor exceeded 1, with values ranging from 1.2 to 23.9 for root application and 6.4 to 164.0 for foliar application, indicating a significant role in the absorption and accumulation processes. The translocation factor data, which were <1, suggest limited the translocations within pakchoi plants. The limitation may be attributed to the hydrophobic properties of penthiopyrad (log Kow = 3.86), as evidenced by its predominant distribution in the subcellular solid fractions of pakchoi tissues, accounting for 93.1% to 99.5% of the total proportion. Six metabolites (753-A-OH, M12, 754-T-DO, M11, PCA, and PAM) were identified in this study as being formed during this process. These findings provide valuable insights into the absorption, translocation, and metabolism of penthiopyrad in pakchoi.
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Affiliation(s)
- Jinming Chang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Fanxia Liao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wenhao Xiong
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wang Tian
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Kankan Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
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Ma Y, Chen R, Zhang R, Liang J, Ren S, Gao Z. Application of DNA-fueled molecular machines in food safety testing. Compr Rev Food Sci Food Saf 2024; 23:1-22. [PMID: 38284608 DOI: 10.1111/1541-4337.13299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
Food is consumed by humans, which is indispensable to human life. Therefore, considerable attention of the whole society has been paid to food safety. Over the last few years, dramatic social development has brought new challenges to food safety, making developing new and quick methods for on-site food safety testing an important necessity. As a result, DNA-fueled molecular machines, characterized by high efficiency, accuracy, and sensitivity in testing, have come into the spotlight, based on which sensors can be constructed to detect toxic and harmful substances in food products. This study reviewed recent research on several DNA-fueled molecular machines, including DNA tweezers, DNA walkers, and DNA origami, for rapidly detecting toxic and harmful substances. Based on the above studies, the sensitivity and timeliness of several DNA molecular machines were summarized and compared, and the development prospect of DNA fuel molecular machines in the field of food safety detection was prospected.
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Affiliation(s)
- Yujing Ma
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Ruipeng Chen
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Rui Zhang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Jun Liang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Shuyue Ren
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Zhixian Gao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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Wang X, Diao Z, Liu Z, Qi P, Wang Z, Cang T, Chu Y, Zhao H, Zhang C, Xu H, Di S. Development of S-penthiopyrad for bioactivity improvement and risk reduction from the systemic evaluation at the enantiomeric level. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122012. [PMID: 37307862 DOI: 10.1016/j.envpol.2023.122012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
For the purpose of screening high-efficiency and low-risk green pesticides, a systematic study on fungicide penthiopyrad was conducted at the enantiomeric level. The bioactivity of S-(+)-penthiopyrad (median effective concentration (EC50), 0.035 mg/L) against Rhizoctonia solani was 988 times higher than R-(-)-penthiopyrad (EC50, 34.6 mg/L), which would reduce 75% usage of rac-penthiopyrad under the same efficacy. Furthermore, their antagonistic interaction (toxic unit (TUrac), 2.07) indicated the existence of R-(-)-penthiopyrad would reduce the fungicidal activity of S-(+)-penthiopyrad. AlphaFold2 modeling and molecular docking illustrated that S-(+)-penthiopyrad had the higher binding ability with the target protein than R-(-)-penthiopyrad, showing higher bioactivity. For model organism Danio rerio, S-(+)-penthiopyrad (median lethal concentrations (LC50), 3.02 mg/L) and R-(-)-penthiopyrad (LC50, 4.89 mg/L) were both less toxic than rac-penthiopyrad (LC50, 2.73 mg/L), and the existence of R-(-)-penthiopyrad could synergistically enhance the toxicity of S-(+)-penthiopyrad (TUrac, 0.73), using S-(+)-penthiopyrad would reduce at least 23% toxicity to fish. The enantioselective dissipation and residues of rac-penthiopyrad were tested in three kinds of fruits, and their dissipation half-lives ranged from 1.91 to 23.7 d. S-(+)-penthiopyrad was dissipated preferentially in grapes, which was R-(-)-penthiopyrad in pears. On the 60th d, the residue concentrations of rac-penthiopyrad in grapes were still higher than its maximum residue limit (MRL), but the initial concentrations were lower than their MRL values in watermelons and pears. Thus, more tests in different cultivars of grapes and planting environments should be encouraged. Based on the acute and chronic dietary intake risk assessments, the risks in the three fruits were all acceptable. In conclusion, S-(+)-penthiopyrad is a high-efficiency and low-risk alternative to rac-penthiopyrad.
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Affiliation(s)
- Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Ziyang Diao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China; College of Food Science & Engineering, Hainan University, No. 158 Renmin Avenue, Haikou, 570100, PR China
| | - Zhenzhen Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Tang Cang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Yanyan Chu
- School of Medicine and Pharmacy, Ocean University of China/ Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266200, China
| | - Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Chenghui Zhang
- College of Food Science & Engineering, Hainan University, No. 158 Renmin Avenue, Haikou, 570100, PR China
| | - Hao Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, PR China.
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5
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Wang F, Li X, Jiang S, Han J, Wu J, Yan M, Yao Z. Enantioselective Behaviors of Chiral Pesticides and Enantiomeric Signatures in Foods and the Environment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12372-12389. [PMID: 37565661 DOI: 10.1021/acs.jafc.3c02564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Unreasonable application of pesticides may result in residues in the environment and foods. Chiral pesticides consist of two or more enantiomers, which may exhibit different behaviors. This Review intends to provide progress on the enantioselective residues of chiral pesticides in foods. Among the main chiral analytical methods, high performance liquid chromatography (HPLC) is the most frequently utilized. Most chiral pesticides are utilized as racemates; however, due to enantioselective dissipation, bioaccumulation, biodegradation, and chiral conversion, enantiospecific residues have been found in the environment and foods. Some chiral pesticides exhibit strong enantioselectivity, highlighting the importance of evaluation on an enantiomeric level. However, the occurrence characteristics of chiral pesticides in foods and specific enzymes or transport proteins involved in enantioselectivity needs to be further investigated. This Review could help the production of some chiral pesticides to single-enantiomer formulations, thereby reducing pesticide consumption as well as increasing food production and finally reducing human health risks.
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Affiliation(s)
- Fang Wang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoyun Li
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Shanxue Jiang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Jiajun Han
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Junxue Wu
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Meilin Yan
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
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Liu R, Deng Y, Wu D, Liu Y, Wang Z, Yu S, Nie Y, Zhu W, Zhou Z, Diao J. Systemic enantioselectivity study of penthiopyrad: enantioselective bioactivity, acute toxicity, degradation and influence on tomato. PEST MANAGEMENT SCIENCE 2023; 79:2107-2116. [PMID: 36722434 DOI: 10.1002/ps.7388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/03/2023] [Accepted: 02/01/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND In order to promote the green development of agriculture, it is important to study the enantioselective effect of chiral pesticides. The bioactivity of the chiral fungicide penthiopyrad (PEN) racemate and enantiomers against phytopathogens, toxicity to non-target organisms, effect on tomato fruit growth and maturation, and environmental fate in tomato cultivation were evaluated at an enantioselective level in this study. RESULTS The results indicated that at the same efficacy, the optically pure S-(+)-PEN could lower the dosage of racemate by 20-96%. The S-enantiomer had low toxicity to earthworms. Besides, the S-(+)-PEN did not cause significant abiotic stress to the tomato and increased fruit fresh weight and size via modulating the contents of plant hormones. However, the content of hydrogen peroxide (H2 O2 ), superoxide (O2 - ) and malondialdehyde in the R-enantiomer treatment group was significantly higher than the control group. The effect of the racemate on tomato fruit was between the enantiomers. Furthermore, compared to R-(-)-PEN and racemate, the S-enantiomer degraded more quickly in tomato fruit, leaves, and soil, reducing the danger of human exposure. CONCLUSION The S-enantiomer is highly effective and less toxic. The development of enantiomer pure S-(+)-PEN products might be an efficient and low-risk strategy. The results lay the foundation for comprehensive evaluation and proper application of PEN. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Rui Liu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yue Deng
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Di Wu
- Beijing Plant Protection Station, Beijing, China
| | - Yuping Liu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Zikang Wang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Simin Yu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yufan Nie
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Wentao Zhu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Zhiqiang Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Beijing, China
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Liu H, Liu M, Chen K, Shan M, Li Y. Fertilization can modify the enantioselective persistence of penthiopyrad in relation to the co-influence on soil ecological health. ENVIRONMENTAL RESEARCH 2023; 224:115514. [PMID: 36801231 DOI: 10.1016/j.envres.2023.115514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Penthiopyrad is a widely used chiral fungicide for controlling rust and Rhizoctonia diseases. Development of optically pure monomers is an important strategy to realize amount reduction and increment effects of penthiopyrad, wherein, fertilizers as the co-exiting nutrient supplement may alter the enantioselective residues of penthiopyrad in soil. In our study, influences of urea, phosphate, potash, NPK compound, organic granular, vermicompost and soya bean cake fertilizers on enantioselective persistence of penthiopyrad were fully evaluated. This study demonstrated that R-(-)-penthiopyrad dissipated faster than S-(+)-penthiopyrad during 120 days. High pH, available nitrogen, invertase activities and reduced available phosphorus, dehydrogenase, urease, catalase activities were situated to benefit removing the concentrations of penthiopyrad and weakening enantioselectivity in soil. With respect to the impact of different fertilizers on soil ecological indicators, vermicompost contributed to enhanced pH. Urea and compound fertilizer played an absolute advantage in promoting available nitrogen. All fertilizers didn't go against available phosphorus. Dehydrogenase responded negatively to phosphate, potash and organic fertilizers. Urea increased invertase, besides, it and compound fertilizer both diminished urease activity. The catalase activity was not activated by organic fertilizer. Based on all the findings, soil application of urea and phosphate fertilizers was recommended and considered as a better option to exhibit high efficiency for the dissipation of penthiopyrad. The combined environmental safety estimation can effectively guide the treatment of fertilization soils in line with the nutrition requirements and pollution regulation from penthiopyrad.
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Affiliation(s)
- Hui Liu
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, China.
| | - Mengqi Liu
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, China.
| | - Kuiyuan Chen
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, China.
| | - Mei Shan
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, China.
| | - Yongye Li
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, China.
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Li J, Zhou H, Zuo W, An W, Zhang Y, Zhao Q. Simultaneous enantioselective determination of two succinate- dehydrogenase-inhibitor fungicides in plant-origin foods by ultra-high performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2022; 1677:463325. [PMID: 35853420 DOI: 10.1016/j.chroma.2022.463325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022]
Abstract
Fluindapyr and penthiopyrad are two new succinate-dehydrogenase-inhibitor fungicides both employed as racemic mixtures of enantiomers to control various fungal pathogens. In the present work, a robust and highly-sensitive method for simultaneous determination of fluindapyr and penthiopyrad enantiomers in plant-origin foods (cereals, fruits and vegetables) was developed using UPLC-MS/MS combined with a chiral stationary phase. Rapid baseline chiral separation of four stereoisomers of fluindapyr and penthiopyrad was obtained within 4.2 min on chiral MX(2)-RH column under reversed-phase conditions (with the eluent of acetonitrile/0.1% formic acid in water =70/30 (V:V) and column temperature maintained at 30 °C). The plant-origin samples were extracted quickly with acetonitrile and purified with multi-walled carbon nanotubes. Excellent linearity for the target analytes was observed in the concentration ranging from 1 to 250 µg/L with regression coefficient no less than 0.9967. The mean recoveries of fluindapyr and penthiopyrad enantiomers from six matrices were 77.1-107.2%, with all relative standard deviations values lower than 9.1%. The limit of quantification of four stereoisomers of two target chiral fungicides was 5 µg/kg. The analysis of real samples reveal that the developed method is suitable for the simultaneous chiral determination of fluindapyr and penthiopyrad residues in cereals, fruits and vegetables samples at enantiomeric level and can support their further investigation on enantioselective environmental behaviors and residue surveillance.
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Affiliation(s)
- Jing Li
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China.
| | - Huyi Zhou
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Wei Zuo
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Wenjin An
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Yaohai Zhang
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Qiyang Zhao
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
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9
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Separation and Determination of Fluindapyr Enantiomers in Cucumber and Tomato and by Supercritical Fluid Chromatography Tandem Mass Spectrometry. Food Chem 2022; 395:133571. [DOI: 10.1016/j.foodchem.2022.133571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/12/2022] [Accepted: 06/22/2022] [Indexed: 11/22/2022]
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Pomeisl K, Vaňkátová P, Hamplová V. Enantioselective HPLC of aryl-substituted oxazolines as an efficient tool for determination of chiral purity of serine medicinal components. J Sep Sci 2022; 45:2217-2227. [PMID: 35460597 DOI: 10.1002/jssc.202100958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 11/06/2022]
Abstract
A new approach for evaluation of chiral purity of serine esterification products bearing long-chain alkyl substituents was developed. The compounds were simply converted to aryl-substituted oxazolines which: (i) facilitates effective chromatographic enantioseparation and (ii) enables direct detection using ultraviolet absorption. The method employs polysaccharide-based chiral stationary phase and allows enantioseparation of highly stable oxazoline products in less than 6 minutes using simple binary mobile phase. As opposed to the previously used normal phase method the developed method was performed in the reversed-phase mode. Aside from the benefits of switching to less hazardous solvents with regards to the principles of Green Chemistry, this has also led to reduction of the analysis time. In comparison with known serine chromophores, the best enantioseparation of aryloxazoline rigid structure may be achieved only based on non-polar interactions with chiral stationary phase. In contrast, substitution of the chromophore moiety with hydroxyl substituent affected intra and intermolecular interactions that caused enantioseparation differences. Concurrently, we found a high chirality retention of (R)- and (S)-configuration oxazoline standards (≥ 99% e.e.) during introduction of ultraviolet label. The method is suitable for rapid injection of mixture containing the ultraviolet absorption marker without prior purification. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Karel Pomeisl
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
| | - Petra Vaňkátová
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic.,Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Věra Hamplová
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
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