Effects of Korea Lycium chinense Miller, Schizandra chinensis Baillon, Pueraria thunbergiana Benth, Eucommia ulmoides Oliv Tea Beverage on the Removal of Heavy Metal

한국산 구기자, 오미자, 갈근, 두충차 음료의 중금속 흡착율

The heavy metal removability of four kinds of tea was investigated in the various conditions: particle size of tea(10, 35. 70, 100 mesh), concentration of heavy metal(25, 50, 100ppm) and extraction temperature(30. 50, 70. 10$0^{\circ}C$). The removabilities by the tea solids were increased as the particle size decreased, concentration of heavy metal increased, and extracting temperature increased. Of the four kinds of tea Pb, Cd and Cu removability by Eucommia ulmoides Oliv tea was the highest. In addition, heavy metal removability by Schizandra chinensis Baillon tea was better than that of other tea as extraction temperature was increased.