Phenolic content in tea green tea. Catechins constitute about 25% of the dry mass of a fresh tea leaf, although total catechin content varies widely depending on species, clonal variation, growing location, season, light variation, and altitude. They are present in nearly all teas made from "Camellia sinensis", including white tea, green tea, black tea and oolong tea. Of all the catechins in tea, EGCG is the main subject of scientific study with regard to its potential health effects. 4-Hydroxybenzoic acid, 3,4-dihydroxybenzoic acid (protocatechuic acid), 3-methoxy-4-hydroxy-hippuric acid and 3-methoxy-4-hydroxybenzoic acid (vanillic acid) are the main catechins metabolites found in humans after consumption of green
Nepali tea Nepali tea Nepali tea is a beverage made from the leaves of tea plants ("Camellia sinensis") grown in Nepal. They are distinctive in appearance, aroma and taste, but are similar in many ways to tea produced in Darjeeling tea, perhaps because the eastern zones of Nepal have geography and topography similar to Darjeeling. Its relatively smaller production quantities mean that teas from Nepal are less well known than those from Darjeeling. Nepal's teas fall into two types of tea: Orthodox tea and Crush, tear, curl tea. Orthodox tea refers to the process where tea is hand- or machine-rolled. Most speciality