Arginine. Arginine, or L-arginine as it is called with its L-structure, is a semi-essential amino acid. Arginine is involved in many metabolic processes and important in the treatment of heart diseases and high blood pressure.
Layman's explanation: Nitric acid was first discovered in 1648 by a German chemist, Johann Rudolf. However, in 1901 Wilhelm Ostwald developed the Ostwald Process, which became the principle way of producing nitric acid.
Biotechnology Time Lines n 1871 n DNA was isolated from the sperm of trout found in the Rhine River. n 1873-6 n Robert Koch investigated anthrax and developed techniques to view, grow, and stain organisms. He then photographed them, aided by Gram, Cohn, and Weigart.