Journal article

Sono-transformation of tannic acid into biofunctional ellagic acid micro/nanocrystals with distinct morphologies

Sukhvir Kaur Bhangu, Ritu Singla, Enrico Colombo, Muthupandian Ashokkumar, Francesca Cavalieri

GREEN CHEMISTRY | ROYAL SOC CHEMISTRY | Published : 2018

Abstract

A sustainable, reagent-less and one-pot ultrasonic methodology has been developed to transform amorphous tannic acid into regularly shaped crystalline ellagic acid particles. Multiple and consecutive reactions have been performed on tannic acid, in aqueous solution without the addition of any external reagent. The size, morphology and bio-activity of ellagic acid micro-nanocrystals can be finely tuned by choosing appropriate ultrasonic parameters.