PT  - JOURNAL ARTICLE
AU  - M. G. Lee
AU  - C. M. Rogers
TI  - Degradation of Tryptophan in Aqueous Solution
DP  - 1988 Jan 01
TA  - PDA Journal of Pharmaceutical Science and Technology
PG  - 20--22
VI  - 42
IP  - 1
4099  - http://journal.pda.org/content/42/1/20.short
4100  - http://journal.pda.org/content/42/1/20.full
SO  - PDA J Pharm Sci Technol1988 Jan 01; 42
AB  - The degradation rate of tryptophan is increased by light and in the presence of oxygen and sodium metabisulfite. Light catalyzes the action of oxygen and sodium metabisulfite but will also initiate an autooxidation process in the absence of these two. Tryptophan does not react with sodium metabisulfite alone, oxygen must also be present. The rate of this reaction is greater than that between tryptophan and light or oxygen alone.