TREATMENT OF TOBACCO MATERIAL

摘要

A method is provided for treating a liquid tobacco extract, wherein the method comprises contacting the tobacco extract with an ion exchange resin to reduce the polyphenol content. Also provided is a tobacco extract which has been treated by this method; a method for reducing the polyphenol content of tobacco material; a tobacco material which has been treated by this method, or a derivative thereof; and a smoking article which comprises this tobacco material.