Initially, the contribution of wheat sourdough fermentations on the final bread volume is presented. The distribution of enzyme activities in lactobacilli able to generate volatile aroma compounds from hydroxycinnamic acids is discussed in the second part of this thesis. Finally, insights are given into the oxidative stress response of L. sanfranciscensis; two main enzyme activities contributing to the aerobic life of the strain, glutathione reductase and NADH-oxidase, respectively, are characterized by creating of cognate knockout-mutant strains.
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Initially, the contribution of wheat sourdough fermentations on the final bread volume is presented. The distribution of enzyme activities in lactobacilli able to generate volatile aroma compounds from hydroxycinnamic acids is discussed in the second part of this thesis. Finally, insights are given into the oxidative stress response of L. sanfranciscensis; two main enzyme activities contributing to the aerobic life of the strain, glutathione reductase and NADH-oxidase, respectively, are charact...
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