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- 13Zheng, Jinshui
- 9McMullen, Lynn M.
- 8Hu, Ying
- 8Simpson, David J.
- 8Wang, Zhiying
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Functional characterization of sucrose phosphorylase and scrR, a regulator of sucrose metabolism in Lactobacillus reuteri
Download2013-01-01
Teixeira, Januana S., Abdi, Reihaneh, Su, Marcia Shu-Wei, Schwab, Clarissa, Gänzle, Michael G.
Lactobacillus reuteri harbours alternative enzymes for sucrose metabolism, sucrose phosphorylase, fructansucrases, and glucansucrases. Sucrose phosphorylase and fructansucrases additionally contribute to raffinose metabolism. Glucansucrases and fructansucrases produce exopolysaccharides as...
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Gene-expression profiling of calves 6 and 9 months after inoculation with Mycobacterium avium subspecies paratuberculosis
Download2014
David, Joel, De Buck, Jeroen, Barkema, Herman W., Guan, Leluo
Early detection of Johne's disease (JD) caused by Mycobacterium avium subspecies paratuberculosis (MAP) is essential to reduce transmission; consequently, new diagnostic techniques and approaches to detect MAP or markers of early MAP infection are being explored. The objective was to identify...
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Genetic and phenotypic analysis of carbohydrate metabolism and transport in Lactobacillus reuteri
Download2018-01-01
Lactobacilli derive metabolic energy mainly from carbohydrate fermentation. Homofermentative and heterofermentative lactobacilli exhibit characteristic differences in carbohydrate transport and regulation of metabolism, however, enzymes for carbohydrate transport in heterofermentative...
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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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2014-01-01
Teixeira, Januana S., Seeras, Arisha, Sanchez-Maldonado, Alma Fernanda, Zhang, Chonggang, Su, Marcia Shu-Wei, Gänzle, Michael G.
This study aimed to determine whether glutamine deamidation improves acid resistance of Lactobacillus reuteri, and to assess whether arginine, glutamine, and glutamate-mediated acid resistance are redundant or complementary mechanisms of acid resistance. Three putative glutaminase genes, gls1,...
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Glycomacropeptide from camel milk inhibits the adhesion of enterotoxigenic Escherichia coli K88 to porcine cells
Download2022-11-01
Althnaibat, Rami M., Koch, Mandy, Bruce, Heather L., Wefers, Daniel, Gänzle, Michael G.
Enterotoxigenic Escherichia coli (ETEC) are a major cause of childhood diarrhoea and of diarrhoea in piglets and calves. This study compared the anti-adhesive activities against ETEC of glycomacropeptide (GMP) from Bactrian camels and dromedaries with that of bovine GMP. GMP was purified by ion...
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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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2023-06-01
Althnaibat, Rami M., Bruce, Heather L., Gänzle, Michael G.
The inhibition of starch digestion activities by peptides derived from camel milk proteins was determined and the effect of their amino acids charge and/or hydrophobicity was assessed. Starch digestion by pancreatic and brush border enzymes was assessed in vitro with a peptide to starch ratio of...
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2019-01-01
Zhao, Xin, Wang, Weilan, Blaine, Alysson, Kane, Sarah T., Zijlstra, Ruurd T., Gänzle, Michael G.
Aims: This study aimed to determine whether host-adapted lactobacilli exhibit superior survival during intestinal transit relative to nomadic and free-living organisms, and to characterize the impact of probiotic lactobacilli on autochthonous lactobacilli. Methods and Results: Mixed cultures of...
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2020-08-01
Hu, Ying, Winter, Verena, Gänzle, Michael G.
Isomalto-oligosaccharides (IMO) significantly contribute to the global oligosaccharide market. IMO are linear α-(1 → 6) linked oligosaccharides with isomaltotriose as the representative trisaccharide. Commercial IMO preparations ypically also contain panose-series oligosaccharides as a major...