The effect of long-term storage on the physiochemical and bactericidal properties of electrochemically activated solutions.
The effect of long-term storage on the physiochemical and bactericidal properties of electrochemically activated solutions.
复制标题
DOI：
10.3390/ijms14010457
复制
发表时间：
2012-12-24
影响因子：
5.6
通讯作者：
Reynolds D
中科院分区：
文献类型：
--
作者：
Robinson G;Thorn R;Reynolds D
电化学活化溶液（ECAS）是由NaCl溶液电解产生的，具有广谱抗菌活性和高环境相容性。文献中广泛报道了ECAS在生产点的杀生物功效，其作为“绿色杀生物剂”的资格也是如此。酸性ECAS被认为是生产点最有效的生物杀灭剂，不适合长期储存。酸性ECAS样品在4 °C和20 °C下在玻璃和聚苯乙烯容器中储存398天，并在整个过程中测试游离氯、pH、ORP和杀菌活性。储存的ECAS中的ORP和游离氯（mg/L）随时间下降，当在20 °C下储存在聚苯乙烯中时下降速度最快，当在4 °C下储存在玻璃中时下降速度最慢。杀菌效果也受到储存的影响，当在20 °C下储存时，ECAS在5种情况下未能产生5 log 10的减少。pH值在整个储存期间保持稳定。本研究代表了已发表文献中酸性ECAS的理化参数和杀菌功效的最长储存评价，并表明酸性ECAS保留有用的杀菌活性超过12个月，拓宽了潜在的应用。
Electrochemically activated solutions (ECAS) are generated by electrolysis of NaCl solutions, and demonstrate broad spectrum antimicrobial activity and high environmental compatibility. The biocidal efficacy of ECAS at the point of production is widely reported in the literature, as are its credentials as a “green biocide.” Acidic ECAS are considered most effective as biocides at the point of production and ill suited for extended storage. Acidic ECAS samples were stored at 4 °C and 20 °C in glass and polystyrene containers for 398 days, and tested for free chlorine, pH, ORP and bactericidal activity throughout. ORP and free chlorine (mg/L) in stored ECAS declined over time, declining at the fastest rate when stored at 20 °C in polystyrene and at the slowest rate when stored at 4 °C in glass. Bactericidal efficacy was also affected by storage and ECAS failed to produce a 5 log10 reduction on five occasions when stored at 20 °C. pH remained stable throughout the storage period. This study represents the longest storage evaluation of the physiochemical parameters and bactericidal efficacy of acidic ECAS within the published literature and reveals that acidic ECAS retain useful bactericidal activity for in excess of 12 months, widening potential applications.
登录
查看更多内容
影响因子：
4
作者：
Cloete, T. E.;Thantsha, M. S.;Kirkpatrick, R.
通讯作者：
Kirkpatrick, R.
影响因子：
2
作者：
Koseki, S;Yoshida, K;Itoh, K
通讯作者：
Itoh, K
影响因子：
6.9
作者：
Landa-Solis, C;González-Espinosa, D;Gutierrez, AA
通讯作者：
Gutierrez, AA
影响因子：
6.1
作者：
Len, SV;Hung, YC;Morita, K
通讯作者：
Morita, K
影响因子：
2.4
作者：
Robinson, G. M.;Lee, S. W-H.;Reynolds, D. M.
通讯作者：
Reynolds, D. M.