过氧化物酶催化氯酚氧化生成多氯代二苯并对二噁英和二苯并呋喃。
Peroxidase-catalyzed oxidation of chlorophenols to polychlorinated dibenzo-p-dioxins and dibenzofurans.
作者信息
Oberg L G, Glas B, Swanson S E, Rappe C, Paul K G
机构信息
Department of Medical Biochemistry and Biophysics, University of Umeå, Sweden.
出版信息
Arch Environ Contam Toxicol. 1990 Nov-Dec;19(6):930-8. doi: 10.1007/BF01055064.
Chlorophenols are transformed in vitro to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) by peroxidase-catalyzed oxidations. This is demonstrated with bovine lactoperoxidase as well as horseradish peroxidase, and with 3,4,5- and 2,4,5-trichlorophenol (TrCP). The yield of total PCDD/Fs with lactoperoxidase was 11 micrograms per g 345-TrCP and 10 micrograms per g 245-TrCP, of which 2,3,7,8-substituted PCDD/Fs constituted 8.5 and 2.2 micrograms/g, respectively, corresponding to 0.85 and 1.2 micrograms/g of Nordic TCDD-equivalents.
氯酚在体外通过过氧化物酶催化氧化转化为多氯代二苯并 - 对 - 二噁英和二苯并呋喃（PCDD/Fs）。以牛乳铁过氧化物酶、辣根过氧化物酶以及3,4,5 - 和2,4,5 - 三氯酚（TrCP）进行的实验证明了这一点。乳铁过氧化物酶生成的总PCDD/Fs产量为每克3,4,5 - TrCP 11微克，每克2,4,5 - TrCP 10微克，其中2,3,7,8 - 取代的PCDD/Fs分别为8.5微克/克和2.2微克/克，相当于每克0.85微克和1.2微克的北欧TCDD当量。
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