Increase of NADase Activity during Storage of Pressed Baker’s Yeast

Abstract
Evidence indicates the existence of NADase (EC 3.2.2.5 or 3.2.2.6) in stored yeast juices, which releases nicotinamide directly from NAD+. The increase of NAD decomposing activity during storage of pressed yeast might be due mainly to the appearance of NADase activity (from the latent state) and its subsequent increase.