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Evaluation of Degradation of Antibiotic Tetracycline in Pig Manure by Electron Beam Irradiation


This study was carried out to evaluate the degradation efficiency and intermediate products of the tetracycline from artificially contaminated pig manure using of electron beam irradiation as a function of the absorbed dose. The degradation efficiency of tetracycline was 42.77% at 1 kGy, 64.20% at 3 kGy, 77.83% at 5 kGy, and 90.50% at 10 kGy. The initial concentration of tetracycline (300 mg kg−1) in pig manure decreased significantly to 24.2 ± 5.3 mg kg−1 after electron beam irradiation at 10 kGy. The radiolytic degradation products of tetracycline were 1,4-benzenedicarboxylic acid, hexadecanoic acid, 9-octadecenamide, 11-octadecenamide, and octadecanoic acid.

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This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (No. 2009-0069408).

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Correspondence to Jae-Young Cho.

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Cho, JY. Evaluation of Degradation of Antibiotic Tetracycline in Pig Manure by Electron Beam Irradiation. Bull Environ Contam Toxicol 84, 450–453 (2010).

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  • Antibiotic
  • Electron beam
  • Radiolysis
  • Tetracycline