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Skip to Search Results- 10Gänzle, Michael G.
- 3Garcia-Hernandez, Rigoberto
- 2Li, Hui
- 2McMullen, Lynn
- 2McMullen, Lynn M.
- 2Mercer, Ryan G.
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The locus of heat resistance (LHR) mediates heat resistance in Salmonella enterica, Escherichia coli and Enterobacter cloacae
Download2017-06-01
Mercer, Ryan G., Walker, Brian D., Yang, Xianqin, McMullen, Lynn M., Gänzle, Michael G.
Enterobacteriaceae comprise food spoilage organisms as well as food-borne pathogens including Escherichia coli. Heat resistance in E. coli was attributed to a genomic island called the locus of heat resistance (LHR). This genomic island is also present in several other genera of...
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Structure and function relationships of the binding of β- and ɑ-galactosylated oligosaccharides to K88 fimbriae of enterotoxigenic Escherichia coli
Download2018-01-01
Yan, Ya Lu, Gänzle, Michael G.
Chitosan-oligosaccharides (COS) are suitable acceptors for β-galactosidase, and galactosylated-COS prevent adhesion of enterotoxigenic Escherichia coli (ETEC) K88 to porcine erythrocytes. The structure and functional relationship of oligosaccharide binding to ETEC K88 fimbriae was investigated....
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Microbiological quality of organic vegetables produced in soil treated with different types of manure and mineral fertilizer
Download2006
Maia, Carla M., Carvalho, Isabel D., Serafini, Álvaro B., da Silva, Natan F., André, Maria C. P. B., Machado, Débora C.
An attempt was made to evaluate microbiological quality of horticultural crops grown organically. Three species of vegetables were used, lettuce (Lactuva sativa), radish (Raphanus sativus) and spinach (Tetragonia expansa), grown organically, in fertile soil. Six different treatments were applied:...
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Mechanisms of pressure-mediated cell death and injury in Escherichia coli: From fundamentals to food applications
Download2015
High hydrostatic pressure is commercially applied to extend the shelf life of foods, and to improve food safety. Current applications operate at ambient temperature and 600 MPa or less. However, bacteria that may resist this pressure level include the pathogens Staphylococcus aureus and strains...
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Influence of cyclopropane fatty acids on heat, high pressure, acid, and oxidative stress resistance in Escherichia coli
Download2016-01-01
Chen, Yuan Yao, Gänzle, Michael G.
Heat and high pressure resistant strains of Escherichia coli are a challenge to food safety. This study investigated effects of cyclopropane fatty acids (CFAs) on stress tolerance in the heat- and pressure-resistant strain E. coli AW1.7 and the sensitive strain E. coli MG1655. The role of CFAs...
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2015
Garcia-Hernandez, Rigoberto, Ruan, Lifang, Gänzle, Michael G., Zheng, Jinshui, Mercer, Ryan G., McMullen, Lynn M.
Escherichia coli AW1.7 is a heat resistant food isolate and the occurrence of pathogenic strains with comparable heat resistance may pose a risk to food safety. To identify the genetic determinants of heat resistance, 29 strains of E. coli that differed in their of heat resistance were analyzed...
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2016-01-01
Li, Hui, Garcia-Hernandez, Rigoberto, Driedger, Darcy, McMullen, Lynn M., Gänzle, Michael G.
The pressure resistance of Shiga-toxin producing Escherichia coli (STEC) depends on food matrix. This study compared the resistance of two five-strain E. coli cocktails, as well as the pressure resistant strain E. coli AW1.7, to hydrostatic pressure application in bruschetta, tzatziki, yoghurt...
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Effect of sodium chloride and chitosan on the inactivation of heat resistant or Shiga-toxin producing Escherichia coli during grilling of burger patties
Download2019-01-01
Hu, Ziyi, Rohde, Alina, McMullen, Lynn, Gänzle, Michael G.
Cattle are a reservoir for enterohemorrhagic Escherichia coli (EHEC), and ground beef is a major vehicle for human infection with EHEC. Heat resistance of E. coli, including EHEC, is impacted by NaCl and other additives. This study aimed to evaluate the effect of NaCl and other additives on the...
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Effect of hydrostatic pressure and antimicrobial on survival of Listeria monocytogenes and enterohaemorrhagic E.coli in beef
Download2016-01-01
The effects of marinades on Listeria monocytogenes and enterohaemorrhagic Escherichia coli were investigated in pressure treated beef steaks. Meat was treated with 600 MPa or 450 MPa. Marinades did not enhance pressure inactivation of E. coli in beef steaks and marinades prevented...
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Development and validation of a surrogate strain cocktail to evaluate bactericidal effects of pressure on verotoxigenic Escherichia coli
Download2015-01-01
Garcia-Hernandez, Rigoberto, McMullen, Lynn, Gänzle, Michael G.
Many strains of verotoxigenic Escherichia coli (VTEC) are highly resistant to pressure. To facilitate future studies to improve the elimination of VTEC by pressure processing of food, this study developed and validated a cocktail of non-pathogenic strains of E. coli with equal or higher...