60Co-Irradiation as an Alternate Method for Sterilization of Penicillin G, Neomycin, Novobiocin, and Dihydrostreptomycin
作者:Kiyoshi Tsuji、Paul D. Rahn、Kathy A. Steindler
DOI:10.1002/jps.2600720106
日期:1983.1
To determine the radiolytic degradation scheme and the stability of the antibiotics following irradiation, high-performance liquid chromatographic (HPLC) methods were developed. The resulting rates of degradation for the antibiotics were 0.6, 1.2, 2.3, and 0.95%/Mrad for penicillin G, neomycin, novobiocin, and dihydrostreptomycin, respectively. Furthermore, radiolytic degradation pathways for the antibiotics
评估了使用60Co辐照对抗生素进行灭菌的效果。抗生素粉末仅偶尔被微生物污染。对于曲霉菌属(UC 7297、7298),烟曲霉(UC 7299),杜鹃花属(UC 7300),产品和环境分离物的D值分别为0.028、0.027、0.015、0.046、0.15、0.018和0.19 Mrads。 ,草酸青霉(UC 7269),麦芽假单胞菌(UC 6855)和生物学指示微生物,短小芽孢杆菌孢子(ATCC 27142)。因此,1.14 Mrads的辐照剂量足以实现对短双歧杆菌芽孢的六对数循环破坏。根据生物负荷数据,计算得出最小辐照剂量为1.05 Mrads,足以获得对最耐辐射的分离物Pen进行灭菌的10(-6)概率。草酸 为了确定辐射降解方案和辐射后抗生素的稳定性,开发了高效液相色谱(HPLC)方法。青霉素G,新霉素,新霉素和二氢链霉素的抗生素降解率分别为0.6、1.2、2.3和0.95%/ Mr