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- 1Curtis, Jonathan (Agricultural, Food, and Nutritional Science)
- 1Gaenzle, Michael (AFNS)
- 1Gaenzle, Michael (Agricultural, Food and Nutritional Science)
- 1Gänzle, Michael (ALES, Food Science)
- 1Gänzle, Michael (Agricultural, Food and Nutritional Science)
- 1Gänzle, Michael (Agricultural, Food, and Nutritional Science)
Contribution of glutaminase activity in Lactobacillus reuteri to acid resistance and glutamine metabolism in sourdoughDownload
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...
Sourdough fermentation can generate various peptides and amino acids to improve bread quality, such as taste, flavor and texture. The aim of this PhD dissertation was to investigate the synthesis mechanisms of bioactive and taste active peptides or amino acids during fermentation and their effect...
Non Celiac Wheat Sensitivity (NCWS), an intolerance to the ingestion of wheat products, has increased considerably during the past few years. In sensitive individuals, NCWS manifests by intestinal and extra intestinal symptoms in different ways. Two wheat protein fractions have been linked to...
Enzymatic and microbial conversion of flour components during bread making determines bread quality. Metabolism of sourdough microbiota and the activity of cereal enzymes are interdependent. Acidification, oxygen consumption, and thiols accumulation by microbial metabolism modulate the activity...
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...
Functional characterization of sucrose phosphorylase and scrR, a regulator of sucrose metabolism in Lactobacillus reuteriDownload
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...
Lactobacilli are commonly used in food fermentations. Preservation and changes in food quality due to fermentation arise because of the growth, metabolism and enzymatic activity of these organisms. Enzymatic pathways of lactobacilli can also be exploited for the production of bioactive...
Microbiota are ubiquitous in nature. Similarities as well as differences are present between microbiota in animals and fermentation systems. The aim of the PhD project was to investigate factors affects microbial ecology in rodent and sourdough models. To determine how compromised health of the...
Structure-function relationships of bacterial and enzymatically produced reuterans and dextran in sourdough bread baking applicationDownload
Exopolysaccharides from lactic acid bacteria may improve texture and shelf life of bread. The effect of exopolysaccharides on bread quality, however, depends on properties of the EPS and the EPS producing strain. This study investigated structure-function relationships of EPS in baking...