Tob. Sci., 1967, 11-11, p. 42-44, ISSN.0082-4623
Composition studies on tobacco. XXVII. Polyphenol-amino acid leaf pigment: further structural investigations
Eastern Utilization Research and Development Division, Agricultural Research Services, United States Department of Agriculture, Philadelphia, Pennsylvania USA
The nondialyzable fraction of the leaf pigment previously believed to consist of iron, polyphenols and amino acids has been shown also to contain alkaloids and related bases and a silicone. Data were obtained which substantiate the concept that the...