Indoleacetic Acid Synthesis by Polyphenols in the Extraction of Pinus Phloem and Cambial Tissue.


Indoleacetic acid may be formed by polyphenol oxidation of tryptophan during extraction of plant tissue with aqueous or organic solvents. Polyphenoloxidase promotes the conversion, but studies with heat-inactivated tissue indicate that the reaction can proceed without enzymes. 


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