한국 자생차엽의 유리아미노산, 유기산, 지방산 함량에 관한 연구

• 영문명: Studies on Free Amino Acid, Organic Acid and Fatty Acid Content of Korean Tea Plants
• 발행기관: 한국차학회
• 저자명: 朴 章炫(Jang-Hyun Park) 金 廣植(Kwang-Sik Kim) 崔 炯局(Hyoung-Koog Choi)
• 간행물 정보: 『한국차학회지』제3권 제2호, 73~87쪽, 전체 15쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1997.12.30

영문 초록

The contents of free amino acid, organic acid and fatty acid were analyzed and compared in tea shoot of natively grown tea plants (camellia sinensis var. sinensis) in Korea, the tea plants were collected from 29 locations. The resnlts are summaried as followed. Theanine and 13 other kinds of free amino acids were isolated from native tea leaves. The total contents of free amino acids are in range of 1833-2408 mg/100g. Theanine, aspartic acid, serine, glutamic acid and arginine, the taste-determinants of green tea liquor, occupied as much as 84.5~91.5% of total amino acid. Among these, theanine occupied over 50%. The contents of malefic, malic, succinic, propionic, and oxalic acid are in range of 1630~3289. 939~2503, 321~903, 2058~ 3903 and 4029~7822 mg/kg, respectively. The total contents of organic acids are in range of 11109~16422 mg/kg. The total contents of fatty acids are in range of 2129~2938 mg/100g. The composition ratios of fatty acids of native tea leaves ranged C16:0 17.8~22.4%, C18:0 0.6~2.3%, C18:1 4.7~9.0%, C18:2 21.2~25.3% and C18:3 42.6~49.0%. All together, these results suggest that the native tea plants naturally grown at Bosong Daewonsa, Hwasun Ssangbongsa, Shunchon Changchon-ri, Hadong Ssanggyesa, Namhae Borian, and Kangjin Jangwon tea field are the species of excellency, in terms of abundance of free amino acids including theanine and fatty acids, and less contents of organic acids.

키워드

Camellia sinensis(L) O. Kuntze tea plants free amino acids organic acids