评价电子束辐照对猪粪中抗生素四环素的降解作用。
Evaluation of degradation of antibiotic tetracycline in pig manure by electron beam irradiation.
机构信息
Department of Bio-Environmental Chemistry, Chonbuk National University, Jeonju 561-756, Korea.
出版信息
Bull Environ Contam Toxicol. 2010 Apr;84(4):450-3. doi: 10.1007/s00128-010-9967-2. Epub 2010 Mar 17.
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.
本研究旨在评估电子束辐照作为吸收剂量函数对人工污染猪粪中四环素的降解效率和中间产物。在 1 kGy 时，四环素的降解效率为 42.77%，在 3 kGy 时为 64.20%，在 5 kGy 时为 77.83%，在 10 kGy 时为 90.50%。在 10 kGy 的电子束辐照后，猪粪中初始浓度为 300 mg kg(-1)的四环素显著降低至 24.2 +/- 5.3 mg kg(-1)。四环素的辐射降解产物为 1,4-苯二甲酸、十六烷酸、9-十八烯酰胺、11-十八烯酰胺和十八烷酸。
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