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Skip to Search Results- 5Graduate and Postdoctoral Studies (GPS), Faculty of
- 5Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 4Agricultural, Food and Nutritional Science, Department of
- 4Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
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Contribution of glutaminase activity in Lactobacillus reuteri to acid resistance and glutamine metabolism in sourdough
DownloadFall 2016
Sourdough is used as an additive in bread production for proper dough volume (leavening), or for desired dough acidity, or for dough texture and bread flavor improvement, or for bread shelf life extension. Lactobacillus reuteri, an intestinal isolate and a stable member of sourdough, prevails in...
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Contribution of glutaminases to glutamine metabolism and acid resistance in Lactobacillus reuteri and other vertebrate host adapted lactobacilli
Download2020-04-01
Li, Qing, Tao, QianYing, Teixeira, Juanana S., Shu-Wei Su, Marcia, Gänzle, Michael G.
The bacterial conversion of glutamine to glutamate is catalyzed by glutamine-amidotransferases or glutaminases. Glutamine deamination contributes to the formation of the bioactive metabolites glutamate, γ-aminobutyrate (GABA) and γ-glutamyl peptides, and to acid resistance. This study aimed to...
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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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Factors contributing to the competitiveness of Lactobacillus reuteri in sourdough and rodent gut
DownloadFall 2011
Lactobacillus reuteri is a common organism in cereal-based foods and a gut symbiont in humans and animals, yet the molecular mechanisms allowing its persistence in various niches are not well understood. L. reuteri LTH2584 produces reutericyclin and persists in industrial sourdoughs, where acidic...
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Feed fermentation formulate gut microbiota of weanling pigs - Effects of exopolysaccharides and reutericyclin
DownloadSpring 2015
Enteric bacterial infections, especially post-weaning diarrhea, are among the most common diseases affecting pigs and economically significant in swine production. Antibiotics were a cost-effective method to treat and prevent these bacterial diseases. However, with concerns of the prevalence of...
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Host-adapted lactobacilli in food fermentations: impact of metabolic traits of host adapted lactobacilli on food quality and human health
Download2020-10-27
Back-slopping of fermentation cultures in food fermentations can ensure stability of fermentation microbiota at the species or even at the strain level over extended periods of time. In contrast to the fermentation organisms in spontaneous food fermentations, which are derived from...
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Reutericyclin producing Lactobacillus reuteri modulates development of fecal microbiota in weanling pigs
Download2015
Zhao, Xin, Le, Minh H. A., Yang, Yan, Gänzle, Michael G., Zijlstra, Ruurd
Lactobacillus reuteri is used as probiotic culture in food and feed applications; however, strain specific properties of L. reuteri that mediate probiotic activity remain unknown. This study aimed to determine effects of feed fermentation with exopolysaccharide and reutericyclin producing L....
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Selection of Lactic Acid Bacteria and Their Metabolites for Preventing and Treating Infections
DownloadFall 2012
Increasing prevalence of multidrug-resistance bacteria from extensive antibiotic usage and shortages of new classes of antibiotics have created urgent needs for alternative prevention and treatment options for infections. Based on the hypothesis that lactic acid bacteria (LAB) and their...
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Structure and Function Relationships of Exopolysaccharides Produced by Lactic Acid Bacteria
DownloadSpring 2017
Lactic acid bacteria produce glycans that may be applied in food and pharmaceutical industries as prebiotics, food additives, to prevent pathogen adhesion, or to modulate the host immune system. The recent identification of the structure of galacto-oligosaccharides (GOS) preparations demonstrates...