Effect of Area of Growth on Condensed Tannins in Cotton Bracts

Abstract

Bracts of cotton plants ( Gossypium hirsutum) of three varieties grown in three states were extracted with 70% acetone. The condensed tannins in the extracts and in extracted and unextracted bracts were hydrolyzed in butanolic HCl, and the types and levels of anthocyanidins produced were compared by TLC and spectroscopy. The area of growth had more of an effect than did the variety on levels of anthocyanidins obtained.