BRACONNOT, HENRI. - THE FIRST ISOLATION OF GLYCINE AND LEUCINE.

Mémoire sur la Conversion des matières animales en nouvelles substances par le moyen de l'acide sulfurique.

(Paris, Crochard, 1820).. No wrappers. Extracted from: Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago.", Series 2, Tome 13. Pp. 113-125.

First printing recording Braconnot's isolation of Glycine and Leucine which became the first instance in which a pure amino acid was received from a protein (gelatin) by acidic hydrolysis.

"He went on to study the effects of sulfuric acid on animal substances: gelatin, muscle fibers, and wool. In the case of gelatin, he discovered a sugar-like substance which he called sucre de gélatine, later named glycocoll (glycine). Sulfuric acid converted wool and muscle fiber to a white substance he called leucine." (DSB).

Garrison & Morton: 668.3.

Order-nr.: 45518