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Residual Characteristics of Methyl Bromide and Hydrogen Cyanide in Banana, Orange, and Pineapple

수입과실류(바나나, 오렌지, 파인애플)를 대상으로 Methyl Bromide (CH3Br)와 Hydrogen Cyanide (HCN) 훈증소독 처리 후 약제 잔류 특성

  • Received : 2011.07.14
  • Accepted : 2011.08.29
  • Published : 2011.09.30

Abstract

Fumigant, methyl bromide which is used in most countries for plant quarantine, has been designated and under control as ozone depleting substance. For developing alternative chemicals for methyl bromide, many countries have been intensifying their capacity. This study was carried out to investigate the residue patterns of hydrogen cyanide which is commonly used for plant quarantine. Hydrogen cyanide was treated onto the orange, banana, and pineapple at recommended and double doses and then sampling was done at 1 and 3 day after fumigation treatment. Residue of hydrogen cyanide was found safe because average residue levels on orange, banana, and pineapple after 3 days of fumigation treatment were $0.57{\pm}0.05$, $0.21{\pm}0.17$, and $0.41{\pm}0.08$ ppm, which were lower than the MRLs of Korea (5 ppm), Japan (5 ppm), USA (50 ppm), and Canada (25 ppm). Hydrogen cyanide are expected to be used as alternative chemicals for methyl bromide fumigant for orange, banana, and pineapple.

바나나, 오렌지 및 파인애플을 대상으로 시안화수소 처리후 잔류 특성을 평가하여 과실류에 대한 메틸브로마이드 대체 훈증제 개발 가능성을 조사하였다. 메틸브로마이드 훈증소독시 3일차에서 잔류량이 오렌지와 바나나에서는 1 mg/kg 미만 수준으로 나타났고, 파인애플의 경우에도 1 mg/kg을 조금 상회하는 수준으로 잔류허용 기준치 50 mg/kg을 훨씬 하회하고 있어 메틸브로마이드 잔류로 인한 독성문제는 우려할 수준이 아닌 것으로 평가되었다. 시안화수소 훈증소독의 경우 3일차에서 오렌지 50-60%, 바나나 70-80% 그리고 파인애플 50% 정도 분해 소실된 것으로 나타나, 잔류허용 기준치 5 mg/kg을 하회하는 1 mg/kg 미만 수준으로 나타났다. 이는 향후 메틸브로마이드 대체 훈증제로서 시안화수소의 사용이 가능함을 뒷받침하는 유용한 결과로 판단된다.

Keywords

References

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