Experimente mit Hefe

Why bread dough rises, although yeast cannot metabolize starch: Experiments with yeast Yeast is ideal for simple experiments to visualize metabolic processes, such as those known from baking bread, for example. Thus the metabolism of different sugars to carbon dioxide can be qualitatively demonstrated by inflating balloons or quantitatively by gas production in a fermentation tube (glass airlock for fermentation). The experiments presented can be used to answer the question of why yeast is added to bread dough even though it is not able to convert the starch present in the flour.