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目的 研究环境因素对磷酸钛钠抗菌剂的抗菌活性的影响。方法 利用摇瓶法测定大肠杆菌ATCC4 4 113在各种环境条件下培养后的存活菌数。结果 在试验细菌浓度为 (1 2× 10 2 )～(1 2× 10 8)cfu/ml的范围内 ,存活菌数随试验细菌浓度的提高而增大 ;抗菌剂抗菌活性在 16～ 4 6℃的范围内随温度的升高而增强 ;共存NaCl和蛋白质使抗菌剂抗菌活性下降 ,但分别在浓度为 0 0 1g/ml和 0 0 0 0 5g/ml处达到饱和值 ,超过此值时 ,抗菌性能不再下降。结论 在细菌浓度较大的场合 ,利用该抗菌剂所做成的抗菌材料必须和有机抗菌剂同时使用才能得到良好的洁净环境效果 ,由于抗菌剂在人体温度下具有较好抗菌性能并可望在汗液作用下保持抗菌性能在抗菌布料方面得到应用
Objective To study the influence of environmental factors on the antibacterial activity of sodium titanium phosphate antiseptic. Methods The viable count of Escherichia coli ATCC4 4 113 cultured under various environmental conditions was determined by shake flask method. Results The number of viable cells increased with the increase of test bacterial concentration in the range of (1 2 × 10 2) ~ (1 2 × 10 8) cfu / ml. The antibacterial activity of antibacterial agent ranged from 16 to 46 ℃ with increasing temperature; coexistence of NaCl and protein antibacterial activity of antibacterial activity decreased, but respectively in the concentration of 0 0 1g / ml and 0 0 0 0 5g / ml reached saturation at which value , Anti-bacterial properties no longer decline. Conclusion In the case of large bacterial concentration, the antibacterial material made of the antibacterial agent must be used simultaneously with the organic antibacterial agent to obtain a good clean environmental effect. Since the antibacterial agent has good antibacterial properties at human body temperature and is expected to be Sweat to maintain the antimicrobial properties of antibacterial fabrics have been applied