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Investigation of the Effective Concentration of Ozonated Water for Disinfection in the Presence of Protein Contaminants

机译：在蛋白质污染物存在下对臭氧水进行消毒的有效浓度的研究

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Ozonated water (OW) is presently used as a chemical disinfectant in many fields, due to its versatile antimicrobial properties. As ozone rapidly decomposes to oxygen, especially in the presence of organic matter, it is important to estimate the authentic antimicrobial activity of OW in the presence of contaminants. However, the effect of contaminants on the antimicrobial activity of OW has not been fully investigated. To address this, we evaluated the effect of protein contaminants on the antimicrobial activity of OW. The survival rate of each tested microorganism excluding Bacillus subtilis spores was reduced to less than 0.1%, when the microorganism suspension was exposed to 9.1 ppm of OW for 15 s in the presence of 0.0045% protein. Our study therefore suggests that approximately 10 ppm of OW can reduce the survival rates of almost all microorganisms in the presence of proteins.
机译：由于其通用的抗微生物性质，臭氧水（OW）目前用作许多领域的化学消毒剂。 由于臭氧迅速分解为氧气，特别是在有机质存在下，重要的是估计在污染物存在下的正宗抗微生物活性。 然而，污染物对OW抗微生物活性的影响尚未得到充分研究。 为了解决这一点，我们评估了蛋白质污染物对OW的抗微生物活性的影响。 当在0.0045％蛋白的存在下将微生物悬浮液暴露于9.1ppm，当微生物悬浮液暴露于9.1ppm，每次测试微生物的存活率降低至小于0.1％。 因此，我们的研究表明，大约10ppm的OW可以降低蛋白质存在下几乎所有微生物的存活率。

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