[[Louis Pasteur]] discovered the biological aspect of fermentation,<ref>"He demonstrated that microorganisms cause both fermentation and disease . . ." [http://www.chemheritage.org/discover/chemistry-in-history/themes/pharmaceuticals/preventing-and-treating-infectious-diseases/pasteur.aspx Chemical Heritage Foundation]</ref> | [[Louis Pasteur]] discovered the biological aspect of fermentation,<ref>"He demonstrated that microorganisms cause both fermentation and disease . . ." [http://www.chemheritage.org/discover/chemistry-in-history/themes/pharmaceuticals/preventing-and-treating-infectious-diseases/pasteur.aspx Chemical Heritage Foundation]</ref> |