Mechanism of reduction of AgNO3 to AgNPs by the
phytoconstituents of T. chebulla
The major phytoconstituents present in the myroblan fruit are
hydrolysable tannins, polyphenols, gallic acid, chebulagic acid and
chebulinic acid. The possible mechanism for the reduction of Ag+ is
proposed and presented in Fig. 10. In this scheme, Ag+ ions can
form intermediate complexes with phenolic OH groups present
in hydrolysable tannins which subsequently undergo oxidation to
quinone forms with consequent reduction of Ag+ to AgNPs [32].