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Tea leaves

   Tea distributes in tropical and subtropical regions.In china, mainly in the south of Changjiang River.

   The chemical constituents of the tea leaf include 3.5 to 7.0 percent of inorganic and 93 to 96.5 percent of organic substances.Dozens of inorganic mineral nutrients have been found, mainly phosphorus, potassium, sulfur, magnesium, manganese, fluoride, aluminum, calcium, sodium, iron, copper, zinc, selenium and so on.The kinds of organic substances amount ot more than 450, mainly proteins, lipids, carbohydrates, amino acids, alkaloids,tea polyphenol,
  

  organic acids, pigments, fragrance ingredients, vitamins, saponins, sterol. In these, alkaloid can refresh brain, and tea polyphenol has become very popular for weight loss. Now, tea leaves have been used widely in dailynecessities, such as toothpaste, deodorant, and cosmetics, not just for drinking.

Huacong Middle School in Bazhong City of Sichuan Province     Tea Culture Team