지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Background: Camellia sinensis L.(CS) is a perennial evergreen species of plant whose leaves are used to produce tea. In this plant species, the parts used are the leaves, sub-branch parts are thrown out.
Methods and Results: Ethanol extract of sub-branch parts was used for isolation of major compounds by column chromatography. Structures were identified as caffeine (1), (-)-epicatechin (2) and (-)-epicatechin gallate (3) by interpretation of spectroscopic analysis, including 1H- and 13C-NMR. High-performance liquid chromatography (HPLC) method was used to compare the quantitative level of marker compounds in various extraction solvents of sub-branch parts of CS. The content of caffeine, (-)-epicatechin, and (-)-epicatechin gallate in 30% ethanol extract showed higher value with 3.28 ± 0.57 ㎎/g, 5.53 ± 0.88 ㎎/g, and 1.29 ± 0.24 ㎎/g, respectively.
Conclusions: These results indicated that not only leaves parts but also sub-branch, could be a good source for the functional material and pharmaceutical industry.
Methods and Results: Ethanol extract of sub-branch parts was used for isolation of major compounds by column chromatography. Structures were identified as caffeine (1), (-)-epicatechin (2) and (-)-epicatechin gallate (3) by interpretation of spectroscopic analysis, including 1H- and 13C-NMR. High-performance liquid chromatography (HPLC) method was used to compare the quantitative level of marker compounds in various extraction solvents of sub-branch parts of CS. The content of caffeine, (-)-epicatechin, and (-)-epicatechin gallate in 30% ethanol extract showed higher value with 3.28 ± 0.57 ㎎/g, 5.53 ± 0.88 ㎎/g, and 1.29 ± 0.24 ㎎/g, respectively.
Conclusions: These results indicated that not only leaves parts but also sub-branch, could be a good source for the functional material and pharmaceutical industry.
목차
ABSTRACT
서언
재료 및 방법
결과 및 고찰
REFERENCES
참고문헌 (25)
참고문헌 신청
Chung DH / 2004 / Components and efficacy of tea / Hongikjae :43~46
Crespy V / 2004 / A review of the health effects of green tea catechins in vivo animal models / Journal of Nutrition 134:3431~3440
Goto T / 1996 / Simultaneous analysis of individual catechins and caffeine in green tea / Journal of Chromatography A 749:295~299
Jung E / 2007 / Effect of Camellia japonica oil on human type I procollagen production and skin barrier function / Journal of Ethnopharmacology 112:127~131
Kasaoka S / 2002 / Green tea flavonoids inhibit the LDL oxidation in osteogenic disordered rats fed a marginal ascorbic acid in diet / Journal of Nutritional Biochemistry 12:96~102
Crespy V / 2004 / A review of the health effects of green tea catechins in vivo animal models / Journal of Nutrition 134:3431~3440
Goto T / 1996 / Simultaneous analysis of individual catechins and caffeine in green tea / Journal of Chromatography A 749:295~299
Jung E / 2007 / Effect of Camellia japonica oil on human type I procollagen production and skin barrier function / Journal of Ethnopharmacology 112:127~131
Kasaoka S / 2002 / Green tea flavonoids inhibit the LDL oxidation in osteogenic disordered rats fed a marginal ascorbic acid in diet / Journal of Nutritional Biochemistry 12:96~102
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