通过辐照消除展青霉素对枯草芽孢杆菌和巨大芽孢杆菌的毒性作用。

Elimination of the toxic effects of patulin on Bacillus subtilis and B.megaterium by irradiation.

作者信息

Zegota H, Pietka M

机构信息

Institute of Applied Radiation Chemistry, Technical University, Lódź, Poland.

出版信息

Z Lebensm Unters Forsch. 1989 Apr;188(4):348-50. doi: 10.1007/BF01352396.

DOI:10.1007/BF01352396

PMID:2502886

Abstract

The bacteriological toxicity of patulin irradiated in aqueous solutions was investigated using two strains of bacteria, Bacillus subtilis and B.megaterium. The results of the plate cultivation test showed that the growth inhibition of both strains decreased in relation to absorbed dose. A dose of 1.8 kGy was sufficient to eliminate the bacteriological toxicity of patulin at an initial concentration of 125 micrograms/ml. There was good correlation between the concentration of patulin in the irradiated solution as measured spectrophotometrically and that calculated from the diameter of the inhibition zone.

摘要

使用枯草芽孢杆菌和巨大芽孢杆菌两种菌株研究了水溶液中展青霉素辐照后的细菌学毒性。平板培养试验结果表明，两种菌株的生长抑制率均随吸收剂量的增加而降低。1.8千戈瑞的剂量足以消除初始浓度为125微克/毫升的展青霉素的细菌学毒性。通过分光光度法测定的辐照溶液中展青霉素的浓度与根据抑菌圈直径计算得出的浓度之间存在良好的相关性。