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Using Candida oleophila as a biocontriol agens to prevent foodborne Escherichia coli O157 EHEC infections.

Wang Y, Wei A, Li H - Springerplus (2012)

Bottom Line: Escherichia coli O157:H7 (EHEC O157) is a serious pathogen causing haemorrhagic colitis.The results presented in this study indicated that EHEC O157 could survive and grow in wounded 'Fuji' apples and extensively proliferate.Water as a decontaminant was ineffective in reducing EHEC O157 in wounded apples.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041 People's Republic of China.

ABSTRACT
Escherichia coli O157:H7 (EHEC O157) is a serious pathogen causing haemorrhagic colitis. In this study, inactivation kinetics of inoculated EHEC O157 and response of EHEC O157 in apple wounds by different concentrations of C. oleophila was investigated. The results presented in this study indicated that EHEC O157 could survive and grow in wounded 'Fuji' apples and extensively proliferate. Water as a decontaminant was ineffective in reducing EHEC O157 in wounded apples. C. oleophila could be a viable method of controlling wound contaminated by this pathogen at room temperature.

No MeSH data available.


Related in: MedlinePlus

Concentration dynamics of EHEC O157 during storage at 25°C withoutC. oleophila.
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Fig1: Concentration dynamics of EHEC O157 during storage at 25°C withoutC. oleophila.

Mentions: Concentration dynamics of EHEC O157 in apple wounds without inoculating with C. oleophila was investigated. The initial population of total EHEC O157 was about 5.5 log CFU in an apple wound. Population dynamics of EHEC O157 in wounded apple during storage period in this study are shown in Figure 1. The EHEC O157 population decreased during the first 24 h at 25°C. Subsequently, it increased progressively to reach maximum population of 7.6 log CFU/wound after about 5d of storage. After that the population remained stable. Water treatment was carried out at day 6. However, it caused little change in pathogens count with a reduction of about 0.4 log CFU/wound of EHEC O157Figure 1


Using Candida oleophila as a biocontriol agens to prevent foodborne Escherichia coli O157 EHEC infections.

Wang Y, Wei A, Li H - Springerplus (2012)

Concentration dynamics of EHEC O157 during storage at 25°C withoutC. oleophila.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569578&req=5

Fig1: Concentration dynamics of EHEC O157 during storage at 25°C withoutC. oleophila.
Mentions: Concentration dynamics of EHEC O157 in apple wounds without inoculating with C. oleophila was investigated. The initial population of total EHEC O157 was about 5.5 log CFU in an apple wound. Population dynamics of EHEC O157 in wounded apple during storage period in this study are shown in Figure 1. The EHEC O157 population decreased during the first 24 h at 25°C. Subsequently, it increased progressively to reach maximum population of 7.6 log CFU/wound after about 5d of storage. After that the population remained stable. Water treatment was carried out at day 6. However, it caused little change in pathogens count with a reduction of about 0.4 log CFU/wound of EHEC O157Figure 1

Bottom Line: Escherichia coli O157:H7 (EHEC O157) is a serious pathogen causing haemorrhagic colitis.The results presented in this study indicated that EHEC O157 could survive and grow in wounded 'Fuji' apples and extensively proliferate.Water as a decontaminant was ineffective in reducing EHEC O157 in wounded apples.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041 People's Republic of China.

ABSTRACT
Escherichia coli O157:H7 (EHEC O157) is a serious pathogen causing haemorrhagic colitis. In this study, inactivation kinetics of inoculated EHEC O157 and response of EHEC O157 in apple wounds by different concentrations of C. oleophila was investigated. The results presented in this study indicated that EHEC O157 could survive and grow in wounded 'Fuji' apples and extensively proliferate. Water as a decontaminant was ineffective in reducing EHEC O157 in wounded apples. C. oleophila could be a viable method of controlling wound contaminated by this pathogen at room temperature.

No MeSH data available.


Related in: MedlinePlus