Antimicrobial activity and stability of weakly acidified chlorous acid water

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URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/28746
Title
Antimicrobial activity and stability of weakly acidified chlorous acid water
File
Description

Abstract

The antimicrobial activity of weakly acidified chlorous acid water (WACAW) against Staphylococcus aureus, non-pathogenic Escherichia coli, enterohemorrhagic E. coli (EHEC O157:H7), Candida albicans, and spore-forming Bacillus and Paenibacillus species was evaluated in vitro. The antiviral activity was also examined using feline calicivirus (FCV). Diluted WACAW (>100 ppm) effectively reduced the number of non-spore-forming bacteria (>4 log10 CFU reductions) within 5 min. Treatment with this sanitizer at 400 ppm for 30 min achieved>5 log10 CFU reductions in spore-forming Bacillus and Paenibacillus species while an equivalent concentration of sodium hypochlorite (NaClO) resulted in only a 0.98 and 2.72 log10 CFU reduction, respectively. The effect of this sanitizer against FCV was equivalent to that of NaClO. Immersion in WACAW (400 ppm) achieved >4 and 2.26 log10 CFU reductions in Campylobacter jejuni and EHEC, respectively, on artificially contaminated broiler carcass pieces. Finally, theantimicrobial activity of this sanitizer was shown to be maintained for at least 28 d when in contact with nonwoven fabric (100% cotton). This study showed that pH control of chlorous acid is expected to modify its antimicrobial activity and stability. WACAW is expected to have applications in various settings such as the food processing and healthcare industrie

Keywords: Chlorous acid water, Weak acidification, Broiler carcasses, Stability in fabrics

(医博甲628)

Author
著者 堀内 功典
著者(ヨミ) ホリウチ イサノリ
著者(別表記) Horiuchi Isanori
Publication Title
Biocontrol Science
Publication Title Alternative
Biocontrol Sci.
Volume
20
Issue
1
Start Page
43
End Page
51
Publisher
Society for Antibacterial and Antifungal Agents, Japan
日本防菌防黴学会
Published Date
2015-03-30
ISSN
1342-4815
NCID
AA11169621
PMID
25817812
DOI
10.4265/bio.20.43
Resource Type
Thesis or Dissertation
Language
eng
Resource URL
https://doi.org/10.4265/bio.20.43
Rights
Copyright © 2015 The Society for Antibacterial and Antifungal Agents, Japan
"This is the Publisher's version of the following article: Antimicrobial Activity and Stability of Weakly Acidified Chlorous Acid Water; Biocontrol Science; Volume 20 Issue 1 (2015) Pages: 43-51; doi: 10.4265/bio.20.43, which has been published in final form at https://doi.org/10.4265/bio.20.43 . " (Free Open access.)
Text Version
ETD
Grant ID
博甲第628号
Grant Date
2016-03-24
Degree Name
博士(医学)
Grantor
香川大学
Set
香川大学
Copyright (C) 2009 Kagawa University All rights reserved.