Inactivation of Listeria monocytogenes, Escherichia coli O157:H7, and Pre-existing Bacteria on Spinach by Combined Treatment of Cudrania tricuspidata Leaf Extract Washing and Ultraviolet-C Irradiation

2020 ◽  
Vol 13 (7) ◽  
pp. 1229-1239
Author(s):  
Hyuk-Je Woo ◽  
Ji-Hoon Kang ◽  
Chae-Hun Lee ◽  
Kyung Bin Song
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Leaf Extract ◽  
Combined Treatment ◽  
Escherichia Coli O157 ◽  
Cudrania Tricuspidata ◽  
Ultraviolet C

Ultraviolet-C inactivation of Escherichia coli O157:H7, Listeria monocytogenes , Pseudomonas aeruginosa , and Salmonella enterica in liquid egg white

Food Control ◽  
2017 ◽  
Vol 73 ◽  
pp. 1303-1309 ◽  
Author(s):  
Alonzo A. Gabriel ◽  
Desiree D. Vera ◽  
Olga Monina Y. Lazo ◽  
Vallerie B. Azarcon ◽  
Cleomelle G. De Ocampo ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Listeria Monocytogenes ◽  
Salmonella Enterica ◽  
Egg White ◽  
Escherichia Coli O157 ◽  
Ultraviolet C

Simultaneous Effects of UV-A and UV-B Irradiation on the Survival of Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes in Buffer Solution and Apple Juice

2019 ◽  
Vol 82 (12) ◽  
pp. 2065-2070
Author(s):  
YOON-JAE JEONG ◽  
JAE-WON HA
Keyword(s):  
Escherichia Coli ◽  
Listeria Monocytogenes ◽  
Salmonella Typhimurium ◽  
Apple Juice ◽  
Combined Treatment ◽  
Antagonistic Effect ◽  
Escherichia Coli O157 ◽  
Buffer Solution ◽  
E Coli ◽  
Uv Lamps

ABSTRACT The objective of this study was to evaluate the efficacy of simultaneous UV-A and UV-B irradiation (UV-A+B) for inactivating Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes in both phosphate-buffered saline (PBS) and apple juice. A cocktail of the three pathogens was inoculated into PBS and apple juice, and then the suspensions were irradiated with UV lamps of 356 nm (UV-A) and 307 nm (UV-B). Significant (P < 0.05) log reductions of the three pathogens in PBS and apple juice were observed after a maximum dose of UV-B alone or the UV-A+B treatment, but few reductions were observed upon UV-A treatment alone. At all irradiation times, antagonistic effects were observed for the application of UV-A+B against in E. coli O157:H7, Salmonella Typhimurium, and L. monocytogenes in PBS and apple juice. The degree of antagonistic effect in apple juice was greater than that in PBS. The results of this study suggest that the combined treatment of commercial UV-A and UV-B lamps would be impractical for disinfecting juice products. HIGHLIGHTS

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