The contents of total free amino acid, theanaine and catechin were analyzed and compared in tea shoot of native korean tea plant (Camellia sinensis var. sinensis) picking from thirteen places and Yabukita(Camellia sinensis var. yabukita), and excellent Japanese variety. Results of this investigation are summarized as follow. The content of total free animo acid of the Yabukita(2376mg/100g) was higher than that of the average of native korean tea plants(1947mg/100g). The content of total free amino acid of Hadong - gun and Tamyang - gun was higher than that of the average of other districts. Theanine content among free amono acids was the highest as 1281 mg/100g in Yabukita and the average content of wild varieties was 1060 mg/100g. The contents of catechin at Koksong - gun was the highest as 12.56%, and that of Yongkwang - gun was the lowest as 8.83%. The main ingredients had order of (-)EGCG > (-)EGC > (-)ECG > (-)EC >（＋)C.
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