Description:
(American Biochemist Who Won the 1946 Nobel Prize in Chemistry) John Howard Northrop became interested in enzymes while conducting research on fermentation processes of acetone and ethyl alcohol for U.S. Army Chemical Warfare Service during WWI and established that enzymes obey laws of chemical reactions. He later isolated and crystallized pepsin, trypsin and chymotrypsin and bacteriophage and also determined their chemical nature; he earned 1946 Nobel Prize in Chemistry for it.
