Inactivation of Escherichia coli O157:H7 and Salmonella Typhimurium in black and red pepper by vacuumed hydrogen peroxide vapor

2021 ◽  
Author(s):  
Won‐Jae Song ◽  
Dong‐Hyun Kang
Keyword(s):  
Escherichia Coli ◽  
Hydrogen Peroxide ◽  
Salmonella Typhimurium ◽  
Red Pepper ◽  
Escherichia Coli O157 ◽  
Hydrogen Peroxide Vapor

Inactivation of Escherichia coli O157:H7 and Salmonella Typhimurium in black pepper and red pepper by gamma irradiation

2014 ◽  
Vol 172 ◽  
pp. 125-129 ◽  
Author(s):  
Won-Jae Song ◽  
Hye-Jung Sung ◽  
Sung-Youn Kim ◽  
Kwang-Pyo Kim ◽  
Sangryeol Ryu ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Salmonella Typhimurium ◽  
Gamma Irradiation ◽  
Black Pepper ◽  
Red Pepper ◽  
Escherichia Coli O157

Inactivation of Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella Typhimurium with Compounds Available in Households

2009 ◽  
Vol 72 (6) ◽  
pp. 1201-1208 ◽  
Author(s):  
HUA YANG ◽  
PATRICIA A. KENDALL ◽  
LYDIA MEDEIROS ◽  
JOHN N. SOFOS
Keyword(s):  
Escherichia Coli ◽  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Listeria Monocytogenes ◽  
Citric Acid ◽  
Salmonella Typhimurium ◽  
Initial Temperature ◽  
Escherichia Coli O157 ◽  
E Coli ◽  
Log Reduction

Solutions of selected household products were tested for their effectiveness against Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella Typhimurium. Hydrogen peroxide (1.5 and 3%), vinegar (2.5 and 5% acetic acid), baking soda (11, 33, and 50% sodium bicarbonate), household bleach (0.0314, 0.0933, and 0.670% sodium hypochlorite), 5% acetic acid (prepared from glacial acetic acid), and 5% citric acid solutions were tested against the three pathogens individually (five-strain composites of each, 108 CFU/ml) by using a modified AOAC International suspension test at initial temperatures of 25 and 55°C for 1 and 10 min. All bleach solutions (pH 8.36 to 10.14) produced a >5-log reduction of all pathogens tested after 1 min at 25°C, whereas all baking soda solutions (pH 7.32 to 7.55) were ineffective (<1-log reduction) even after 10 min at an initial temperature of 55°C. After 1 min at 25°C, 3% hydrogen peroxide (pH 2.75) achieved a >5-log reduction of both Salmonella Typhimurium and E. coli O157:H7, whereas undiluted vinegar (pH 2.58) had a similar effect only against Salmonella Typhimurium. Compared with 1 min at 25°C, greater reductions of L. monocytogenes (P < 0.05) were obtained with all organic acid and hydrogen peroxide treatments after 10 min at an initial temperature of 55°C. The efficacies of household compounds against all tested pathogens decreased in the following order: 0.0314% sodium hypochlorite > 3% hydrogen peroxide > undiluted vinegar and 5% acetic acid > 5% citric acid > baking soda (50% sodium bicarbonate). The sensitivity of the tested pathogens to all tested household compounds followed the sequence of Salmonella Typhimurium > E. coli O157: H7 > L. monocytogenes.

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