Journal Articles (Agricultural, Food and Nutritional Science)
Items in this Collection
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Effect of copy number of the spoVA2mob operon, sourdough and reutericyclin on ropy bread spoilage caused by Bacillus spp.
Download2020-10-01
Li, Zhen, Siepmann, Francieli Begnini, Tovar, Luis E. Rojas, Chen, Xiaoyan, Gänzle, Michael G.
Bacillus spp. cause ropy bread spoilage of bread, which is characterized by a rotten fruity odor, followed by discoloration and degradation of the crumb. Bacillus spp. are wheat grain endophytes and form heat resistant endospores, therefore, process hygiene and heating during baking do not...
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Effect of drying on oxidation of membrane lipids and expression of genes encoded by the Shiga toxin prophage in Escherichia coli
Download2020-01-01
Fang, Yuan, McMullen, Lynn M., Gänzle, Michael G.
Drying processes do not eliminate pathogenic Escherichia coli in foods but induce sublethal injury, which may also induce the Shiga toxin (Stx) prophage. This study investigated the effect of drying on membrane lipid oxidation and stx expression in E. coli. Lipid peroxidation was probed with...
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2005
Vogel, Rudi F., Märtlbauer, Erwin, Ehrmann, Matthias A., Gänzle, Michael G., Margosch, Dirk, Moravek, Maximilian
Even though the inactivation of microorganisms by high pressure treatment is a subject of intense investigations, the effect of high pressure on bacterial toxins has not been studied so far. In this study, the influence of combined pressure/temperature treatment (0.1 to 800 MPa and 5 to 121 °C)...
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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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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 starter cultures on taste-active amino acids and survival of pathogenic Escherichia coli in dry fermented beef sausages
Download2018-08-01
Tang, Kai Xing, Shi, Tiange, Gänzle, Michael G.
The accumulation of taste-active compounds during ripening determines the taste of fermented meats; however, the contribution of defined starter cultures to glutamate during sausage ripening remains unknown. This study investigated the role of lactic acid bacteria and Staphylococcus carnosus on...
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Effect of temperature on production of oligosaccharides and dextran by Weissella cibaria 10 M
Download2018-01-01
The formation of HoPS and oligosaccharides in sourdough fermentation improves bread quality but is dependent on the expression of glycansucrases by lactic acid bacteria. Data on the expression of dextransucrases by Weissella spp., however, are limited. This study therefore aimed to assess...
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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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Effects of high-pressure carbon dioxide on microbial quality and germination of cereal grains and beans
Download2021-09-01
Fang, Yuan, Franke, Claudia, Manthei, Alina, McMullen, Lynn, Temelli, Feral, Gänzle, Michael G.
Decontamination of low aw foods without impairing the food quality is challenging, particularly for sprouting seeds. This study aimed to explore the lethality of high pressure carbon dioxide (HPCD) to Salmonella enterica, E. coli AW1.7, A. niger, P. roquforti, and Fusarium on beans, cereal...
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Environmental particulate matter induces murine intestinal inflammatory responses and alters the gut microbiome
Download2013-01-01
Thiesen, Aducio, Rioux, Kevin P., Tso, Robert, Kish, Lisa, Barkema, Herman W., Madsen, Karen L., Vincent, Renaud, Wine, Eytan, Kaplan, Gilaad G., Hotte, Naomi, Gänzle, Michael G.
Background Particulate matter (PM) is a key pollutant in ambient air that has been associated with negative health conditions in urban environments. The aim of this study was to examine the effects of orally administered PM on the gut microbiome and immune function under normal and inflammatory...