Naka Angelica, Yakubo Masaya, Nakamura Kenji, Kurahashi Midori
Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
Research Department, Toyotomi Co. Ltd., Nagoya, Japan.
PeerJ. 2020 Feb 18;8:e8593. doi: 10.7717/peerj.8593. eCollection 2020.
Bacterial inactivation is a crucial aspect of sanitation and hygiene. The effectiveness of slightly acidic electrolyzed water (SAEW) for reduction or removal of , and was evaluated. The bactericidal activity of SAEW and sodium hypochlorite (NaOCl) against and were compared through in vitro experiments. The effectiveness of SAEW spray was tested against . Results showed that SAEW had a more powerful bactericidal activity than NaOCl at the same available chlorine concentrations. For , SAEW decreased the bacterial counts from 8.4 log CFU/mL to less than 3.9 log CFU/mL; NaOCl with the same available chlorine of 0.5 mg/L, caused a decrease from 8.4 log CFU/mL to 7.1 log CFU/mL. For , SAEW caused bacterial counts to decrease from 8.5 log CFU/mL to less than 4.1 log CFU/mL against 8.5 log CFU/mL to 6.2 log CFU/mL for NaOCl with the same available chlorine of 0.5 mg/L. Spray experiments showed that 10 mg/L of SAEW spray decreased the bacterial counts of from 3.7 log CFU/m to 2.8 log CFU/m, with 20 mg/L causing a reduction from 3.8 log CFU/m to 0 CFU/m. The overall findings of this study indicate that SAEW may be a promising disinfectant agent either as a solution or spray.
细菌灭活是卫生和清洁的一个关键方面。评估了微酸性电解水（SAEW）对减少或去除[具体物质未明确列出]的有效性。通过体外实验比较了SAEW和次氯酸钠（NaOCl）对[具体细菌未明确列出]和[具体细菌未明确列出]的杀菌活性。测试了SAEW喷雾对[具体细菌未明确列出]的有效性。结果表明，在相同有效氯浓度下，SAEW比NaOCl具有更强的杀菌活性。对于[具体细菌未明确列出]，SAEW将细菌数量从8.4 log CFU/mL降至低于3.9 log CFU/mL；有效氯为0.5 mg/L的NaOCl则将细菌数量从8.4 log CFU/mL降至7.1 log CFU/mL。对于[具体细菌未明确列出]，SAEW使细菌数量从8.5 log CFU/mL降至低于4.1 log CFU/mL，而有效氯为0.5 mg/L的NaOCl则使细菌数量从8.5 log CFU/mL降至6.2 log CFU/mL。喷雾实验表明，10 mg/L的SAEW喷雾使[具体细菌未明确列出]的细菌数量从3.7 log CFU/m降至2.8 log CFU/m，20 mg/L则使其从3.8 log CFU/m降至0 CFU/m。本研究的总体结果表明，SAEW作为溶液或喷雾可能是一种有前景的消毒剂。
