Green tea Canadian Food Inspection Agency (CFIA). It is one of the foods for which a standard of identity is specified according to the Food and Drug Regulations. It should contain not less than 33% water-soluble extractive (determined by official method FO-37 which is the determination of water-soluble extractive in tea) and the total ash should between 4% to 7%. Green tea Green tea is a type of tea that is made from "Camellia sinensis" leaves that have not undergone the same withering and oxidation process used to make oolong teas and black teas. Green tea originated in China, but its production
Camellia sinensis there is no high-quality evidence that tea confers significant benefits. In clinical research over the early 21st century, tea has been studied extensively for its potential to lower the risk of human diseases, but none of this research is conclusive as of 2017. Caffeine is a molecule produced in "Camellia sinensis" and functions as a secondary metabolite. Caffeine is a purine alkaloid and its biosynthesis occurs in young tea leaves and is regulated by several enzymes. The biosynthetic pathway in "C. sinensis" differs from other caffeine producing plants such as coffee or guyausa. Analysis of the pathway was carried out