... the origin of the name Lu'an guapian. The green tea-leaf include phosphorus, potassium, sulfur, magnesium, manganese, ... calcium, sodium, iron, copper, zinc, selenium and other. Tea in the organic compounds are protein, lipid, carbohydrate, amino acids ... , alkaloids, organic acid, tea polyphenols, pigments, aroma component, vitamin, saponins, sterols.The benefits ...