<P> In 1857 , French microbiologist Louis Pasteur proved in the paper `` Mémoire sur la fermentation alcoolique '' that alcoholic fermentation was conducted by living yeasts and not by a chemical catalyst . Pasteur showed that by bubbling oxygen into the yeast broth , cell growth could be increased , but fermentation was inhibited -- an observation later called the `` Pasteur effect '' . </P>
<P> In 1857 , French microbiologist Louis Pasteur proved in the paper `` Mémoire sur la fermentation alcoolique '' that alcoholic fermentation was conducted by living yeasts and not by a chemical catalyst . Pasteur showed that by bubbling oxygen into the yeast broth , cell growth could be increased , but fermentation was inhibited -- an observation later called the `` Pasteur effect '' . </P>
who discover the role of yeast in fermentation
who discover the role of yeast in fermentation
Louis Pasteur
Louis Pasteur