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朴章鉉(Jang-Hyun Park),金正鳳(Jung-Bong Kim),金廣植(Kwang-Sik Kim) 한국차학회 1996 한국차학회지 Vol.2 No.1
Fatty acid composition was analyzed and compared in tea shoot of korean native tea plant (Camellia sinensis Var. Sinensis) picking from thirteen places and Yabukita(Camellia sinensis Var. Yabukita), an excellent Japanese variety. Results of this investigation are summarized as follow. Palmitic acid, Stearic acid, Oleic acid, Linoleic acid, Linolenic acid were confirmed thirteen places of korean native tea plant. The content of total fatty acid at Shunchang-gun tea leaves usually was the highest as 3555.3mg/100g, and that of Yong Kwang-gun tea leaves was the lowest as 2089.1mg/100g. The content of total fatty acid of Yabukita tea leaves usually was 3084.9mg/100g. The composition of fatty acid had order of C18 : 3 > C18 : 2 > C16 : 0 > C18 : 1 > C18 : 0.
國內産 茶葉의 유리아미노산, 데아닌, 카테친 含量에 관한 硏究
朴章鉉(Jang-Hyun Park),金廣植(Kwang-Sik Kim),金冑,喜(Ju-Hee Kim),崔炯局(Hyoung-Koog Choi),金善雨(Sun-Woo Kim) 한국차학회 1996 한국차학회지 Vol.2 No.2
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.
朴章炫(Jang-Hyun Park),金冑,禧(Ju-Hee Kim),崔炯局(Hyung-Koog Choi),金台錫(Tae-Shok Kim),金正云(Joung-Woon Kim),金廣植(Kwang-Sik Kim) 한국차학회 1995 한국차학회지 Vol.1 No.1
This study was carried out to investigate growth characteristics, and the contents of mineral element, Tannin, Caffeine and Vitamin C of leaves of 16 wild and cultivated varieties in southernt part of Korea. Results of this investigation are summarized as follows. The most of the wild tea plants were in bamboo thicket or in forest, and the leaf types of tea plants were elliptical or oblong. The leaf sizes of tea plants were 8.2± 1.8× 3.8± 0.8cm, lateral vein number 5.7, crenated number 60.7, and the leaf colors of tea plants were thin green or dark green. The content of total-nitrogen in the culture varieties was 1% lower, but those of P, K, Ca, Mg were higher than wild varieties, The content of Tannin at Naju-Shi was the highest as 15.05%, and that of Hampyong-gun was the lowest as 11.25%. The average content was 14%. The content of caffeine in the wild varieties was a few higher and that of the average was 2.4%. The content of Vitamin C at Kangjin-gun was the highest as 245.8mg% and that of Yangsan-gun was the lowest as 152.9mg%.