scholarly journals Chlorine Dioxide Sterilization of Bulk Aseptic Storage Tanks

Author(s):  
Mark Morgan ◽  
Michael Burke

Chlorine dioxide (ClO2) is an antimicrobial pesticide recognized for its disinfectant properties since the early 1900’s. Antimicrobial pesticides are substances used to control harmful microorganisms including bacteria, viruses or fungi on inanimate objects and surfaces. In 1967, EPA first registered the liquid form of chlorine dioxide for use as a disinfectant and sanitizer. In 1988, EPA registered chlorine dioxide gas as a sterilant. Enerfab and Purdue University began studying the efficacy of using chlorine dioxide gas to sterilize the surfaces of produce in 1996. During this process, Enerfab and Purdue determined that chlorine dioxide gas could potentially be used as an alternative to the traditional method of flood sterilizing bulk aseptic storage tanks with iodophor. This paper outlines the research that has been performed to develop chlorine dioxide gas sterilization of bulk storage tanks with chlorine dioxide, the efficacy of this method of sterilization, the benefits of its use, and the current status. Paper published with permission.

2016 ◽  
Vol 36 (1) ◽  
pp. 100-108 ◽  
Author(s):  
Hyobi Kim ◽  
Bora Yum ◽  
Sung-Sik Yoon ◽  
Kyoung-Ju Song ◽  
Jong-Rak Kim ◽  
...  

2011 ◽  
Vol 236-238 ◽  
pp. 2939-2944 ◽  
Author(s):  
Ri Ya Jin ◽  
Shuang Qi Hu ◽  
Zhi Chao Chi

Experiments were conducted to investigate the effect of concentration and duration of chlorine dioxide gas treatment on Surface sterilization of grape at 25°C. The results showed that the values of inactivate bacterial log reduction ofBotrytis cinerea,Penicilliumandalternariaincreased with the increasing of ClO2gas concentrations and treatment time. When the concentrations and treatment time was about 10 mg/m3and 30 minutes, respectively, more than 4 log reduction was obtained for the three spoilage bacteria on grape surface. Furthermore, the effect of chlorine dioxide gas treatment on quality of grape was investigated. It was found that the contents of vitamin C (Vc) and reducing sugar (RS) in grape also increased compared with grape without ClO2gas treatment.


Author(s):  
Lindsey A. Keskinen ◽  
Bassam A. Annous

2020 ◽  
Vol 328 ◽  
pp. 127121 ◽  
Author(s):  
Yang Yu ◽  
Jianyang Shi ◽  
Bingying Xie ◽  
Yutong He ◽  
Yongping Qin ◽  
...  

1988 ◽  
Vol 51 (11) ◽  
pp. 840-841 ◽  
Author(s):  
MICHAEL B. LIEWEN ◽  
MARK W. PLAUTZ

Raw milk samples were obtained from bulk storage tanks of individual dairy farms in eastern Nebraska during February and July of 1986. One hundred different farms were tested during each period. One-tenth ml of each sample was plated directly onto McBride's Listeria Agar (MLA) and 30 ml was subjected to a four-week cold enrichment procedure. Suspect colonies from MLA were subjected to biochemical tests to confirm identity. Nine percent of all raw milk samples examined were determined to be positive for Listeria species after the cold enrichment procedure. Four percent contained L. monocytogenes and five percent contained L. innocua. Six percent and two percent of samples were found to contain L. monocytogenes in February and July respectively.


2015 ◽  
Vol 13 (1) ◽  
pp. 20-28
Author(s):  
Jeannie M. Stubblefield ◽  
Anthony L. Newsome

2017 ◽  
Vol 26 (1) ◽  
pp. 84-88 ◽  
Author(s):  
Sonia Tabasum Ahmed ◽  
A.B.M. Rubayet Bostami ◽  
Hong-Seok Mun ◽  
Chul-Ju Yang

2012 ◽  
Vol 78 (12) ◽  
pp. 4169-4174 ◽  
Author(s):  
T. Pottage ◽  
S. Macken ◽  
K. Giri ◽  
J. T. Walker ◽  
A. M. Bennett

ABSTRACTThe currently used microbial decontamination method for spacecraft and components uses dry-heat microbial reduction at temperatures of >110°C for extended periods to prevent the contamination of extraplanetary destinations. This process is effective and reproducible, but it is also long and costly and precludes the use of heat-labile materials. The need for an alternative to dry-heat microbial reduction has been identified by space agencies. Investigations assessing the biological efficacy of two gaseous decontamination technologies, vapor hydrogen peroxide (Steris) and chlorine dioxide (ClorDiSys), were undertaken in a 20-m3exposure chamber. Five spore-formingBacillusspp. were exposed on stainless steel coupons to vaporized hydrogen peroxide and chlorine dioxide gas. Exposure for 20 min to vapor hydrogen peroxide resulted in 6- and 5-log reductions in the recovery ofBacillus atrophaeusandGeobacillus stearothermophilus, respectively. However, in comparison, chlorine dioxide required an exposure period of 60 min to reduce bothB. atrophaeusandG. stearothermophilusby 5 logs. Of the three otherBacillusspp. tested,Bacillus thuringiensisproved the most resistant to hydrogen peroxide and chlorine dioxide with D values of 175.4 s and 6.6 h, respectively. Both low-temperature decontamination technologies proved effective at reducing theBacillusspp. tested within the exposure ranges by over 5 logs, with the exception ofB. thuringiensis, which was more resistant to both technologies. These results indicate that a review of the indicator organism choice and loading could provide a more appropriate and realistic challenge for the sterilization procedures used in the space industry.


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