Lotus (Nelumbo nucifera Gaertn.), one of the most well known ornamental and economic perennial aquatic plants, has been cultivated for more than 3,000 years in China and now widely cultivated and consumed all over the world. Almost all parts of the plant may be eaten as a vegetable and it is also used in traditional medicine, especially lotus seed, nelumbinis plumula, lotus seedpod, lotus stamen and lotus leaf have listed in the Chinese Pharmacopoeia and have remarkable physiological activity. The s...