Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Dissipation Patterns of Triazole Fungicides Estimated from Kinetic Models in Apple

Triazole계 살균제의 사과 중 잔류양상의 Kinetic Model 적용

  • Kim, Ji-Hwan (School of Applied Biosciences, Kyungpook National University) ;
  • Hwang, Jeong-In (School of Applied Biosciences, Kyungpook National University) ;
  • Jeon, Young-Hwan (School of Applied Biosciences, Kyungpook National University) ;
  • Kim, Hyo-Young (School of Applied Biosciences, Kyungpook National University) ;
  • Ahn, Ji-Woon (School of Applied Biosciences, Kyungpook National University) ;
  • Kim, Jang-Eok (School of Applied Biosciences, Kyungpook National University)
  • Received : 2012.06.13
  • Accepted : 2012.08.24
  • Published : 2012.12.31
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Abstract

While cultivating crops, it is important to predict the biological half-lives of applied pesticides to ensure the safety of agricultural products. Dissipation patterns of the triazole fungicides, such as diniconazole and metconazole, during the cultivation of apple were established by utilizing the dissipation curve. As well as, the biological half-lives of the pesticides in apples were calculated using the residue amounts of them. The apples were harvested from 0 to 14 days after spraying diniconazole (WP) and metconazole (SC) at a recommended and three times of the recommended dose. Initial concentrations of diniconazole in apple were 0.09 and 0.15 mg/kg at a recommended and three times of the recommended dose, respectively, which were below MRL 1.0 mg/kg established by KFDA. The equations of biological half-life were $C_t=0.0811e^{-0.179x}$(half life: 3.9 days) and $C_t=0.1451e^{-0.148x}$ (half life: 4.7 days), respectively. In case of metconazole, initial concentrations in apple were 0.10 and 0.25 mg/kg, below MRL 1.0mg/kg, and biological half-life equations were $C_t=0.0857e^{-0.055x}$ (half life: 12.6 days) and $C_t=0.2304e^{-0.052x}$ (half life: 13.3 days), respectively. Therefore, when triazole fungicides were applied during the cultivation of apple, the biological half-life need to be calculated with the optimal equation model.

사과에 대한 diniconazole과 metconazole의 반감기와 잔류양상을 조사하였다. Diniconazole과 metconazole의 잔류허용기준은 둘 다 1.0 mg/kg으로서 0일차 기준량과 3회 처리구 모두 잔류 허용기준을 넘지 않았다. 재배기간 중 사과의 잔류농도는 약제살포 후 14일 경과 시 diniconazole은 기준량 및 3회 처리에서 0.01 및 0.02 mg/kg으로서 각각 88.9 및 93.8%의 농약이 분해되었다. Metconazole은 각각 0.04 및 0.11 mg/kg으로서 60.0 및 56.0% 정도의 농약 분해율을 보였다. Diniconazole의 사과중 반감기식은 기중량 처리구에서 y=$0.0811e^{-0.179x}$ ($r^2$=0.9693), 3회 처리구에서 y=$0.1451e^{-0.148x}$ ($r^2$=0.9677)이었으며 생물학적 반감기는 각각 3.9일 및 4.7일 이었다. Metconazole의 반감기식은 y=$0.0857e^{-0.055x}$ ($r^2$=0.9242) 및 y=$0.2304e^{-0.052x}$ ($r^2$=0.9544)이었고 생물학적인 반감기는 각각 12.6일 및 13.3일 이었다. Metconazole 기준량과 3회 처리의 경우 first order kinetic model 보다는 second order kinetic mode이 더 적합하였으며 반감기도 기준량에서 2일, 3회 처리에서 1일 감소되는 것을 알 수 있었다. 따라서 각 농약별로 잔류량과 시간과의 관계에 적합한 model을 찾아 반감기를 산출하는 것이 바람직 할 것으로 생각된다.

Keywords

References

  1. Jeong YH, Kim JE, Kim JH, Lee YD, Lim CH, and Heo JH (2004) In Recent Pesticide Science. pp. 37, 203. Sigma press, Seoul, Korea.
  2. Kim MR, Na MA, Jung WY, Kim CS, Sun NK, Seo EC et al. (2008) Monitoring of pesticide residues in special products. Korean J Pestic Sci 12, 323-34.
  3. Kim YS, Park JH, Park JW, Lee YD, Lee KS, and Kim JE (2002) Persistence and dislodgeable residues of chlorpyrifos and procymidone in lettuce leaves under greenhouse condition. Korean J Environ Agric 21, 149-55. https://doi.org/10.5338/KJEA.2002.21.2.149
  4. Kim YS, Park JH, Park JW, Lee YD, Lee KS, and Kim JE (2003) Residue levels of chlorpyrifos and chlorthalonil in apples at harvest. Korean J Environ Agric 22, 130-6. https://doi.org/10.5338/KJEA.2003.22.2.130
  5. Ko KY, Kim KH, and Lee KS (2004) Residual pattern of procymidone and chlorothalonil in grape during the period of cultivation and storage. Korean J Environ Agric 23, 47-51. https://doi.org/10.5338/KJEA.2004.23.1.047
  6. Korea Crop Protection Association (2011) Pesticides Use Guidelines for 2011. p. 60, 110. Samjeung press, Seoul, Korea.
  7. Lee EY, Kim DK, Park IY, Noh HH, Park YS, Kim TH et al. (2008) Residue patterns of indoxacarb and thiamethoxam in chinese cabbage(Brassica campestris L.) grown under greenhouse conditions and their estimated daily intake. Korean J Environ Agric 27, 92-8. https://doi.org/10.5338/KJEA.2008.27.1.092
  8. Lee EY, Noh HH, Park YS, Kang KW, Kim JK, Jin YD et al. (2009a) Residual characteristics of etofenprox and methoxyfenozide in chinese cabbage. Korean J Pestic Sci 13, 13-20.
  9. Lee HD, Ihm YB, Kwon HY, Kim JB, Kyung KS, Park SS et al. (2005) Characteristics of Pesticide residue in/on cucurbitaceous fruit vegetables applied with foliar spraying under greenhouse. Korean J Pestic Sci 9, 359-64.
  10. Lee JH, Jeon YH, Shin KS, Kim HY, Park EJ, Kim TH et al. (2009b) Biological half-lives of fungicides in Korean melon under greenhouse condition. Korean J Environ Agric 28, 419-26. https://doi.org/10.5338/KJEA.2009.28.4.419
  11. Mackay D, Shiu WY, Ma KC, and Lee SC (2006) Nitrogen and sulfur containing compounds and pesticides. In Physical-Chemical Properties and Environmental Fate for Organic Chemicals Volume VI (2nd ed.). pp. 4033, 4086, 4091, 4103. CRC Press, Boca Raton, FL, USA.
  12. Mohamed MA, Mostafa AS, Hayam ML, and Hany HM (2006) Determination of tetraconazole and diniconazole fungicide residue in tomatoes and green beans by capillary gas chromatography. J Pharm Soc Jpn 127, 993-9.
  13. Park DS, Seong KY, Choi KI, and Hur JH (2005) Field tolerance of pesticides in the strawberry and comparison of biological half-lives estimated from kinetic models. Korean J Pestic Sci 9, 231-6.
  14. Park EJ, Lee JH, Kim TH, and Kim JE (2009) Residual patterns of strobilurin fungicides in Korean melon under plastic film house condition. Korean J Environ Agric 28, 281-8. https://doi.org/10.5338/KJEA.2009.28.3.281
  15. Santoro A, Scopa A, Bufo SA, Mansour M, and Mountacer H (2000) Photodegradation of the triazole fungicide hexaconazole. Bull Environ Contam Toxicol 64, 475-80. https://doi.org/10.1007/s001280000028
  16. Sparks DL (1999) In Soil Physical Chemistry (2nd ed.). pp. 135-91. CRC Press, Boca Raton, FL, USA.
  17. Steel RGD and Torrie JH (1980) A Biometrical Approach. In Principles and Procedures of Statistics (2nd ed.). pp. 8-566. McGraw Hill Book Co., New York, USA.
  18. Tomlin CDS (2006) The Pesticide Manual (14th ed.), pp. 263-4, 352-3, 395- 6, 514-5, 519-20, 566-7, 689-90, 882-4, 1052-5. BCPC publication, Hampshire, UK.
  19. Yang G, Liu H, Wang M, Liu S, and Chen Y (2006) Chromatographic characterization and solid-phase extraction on diniconazole-imprinted polymers stationary phase. Reactive & Functional Polymers 66, 579-83. https://doi.org/10.1016/j.reactfunctpolym.2005.10.029
  20. Yang JE, Park DS, and Han DS (1995) Comparative assessment of the halflives of benfuresate and oxolinic acid estimated from kinetic models under field soil conditions. Korean J Environ Agric 14, 302-11.

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