Antioxidant activity and extraction kinetics of polyphenols in BOPF grade black tea (Camellia sinensis) from different geographical elevations in Sri Lanka

Abstract

Tea processed from young leaves and buds of Camellia sinensis is one of the most widely consumed beverages in the world due to its beneficial health effects. Tea grown in Sri Lanka are categorized as high grown (HGT), mid grown (MGT) and low grown tea (LGT) based on the geographical elevation of tea cultivation regions