土肉桂葉部之生理活性成分分析研究

林岳賢

doi:10.6845/NCHU.2008.00340

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土肉桂葉部之生理活性成分分析研究

Bioactive Components Isolated from the Leaves of Cinnamomum osmophloeum Kanehira

林岳賢 , Masters　　Advisor：鍾婷婷　　

繁體中文 DOI： 10.6845/NCHU.2008.00340

土肉桂；黃酮苷類；人類乳癌腫瘤細胞株(MCF-7) ； Cinnamomum osmophloeum Kanehira ； flavonoids glycosides ； human breast adenocarcinoma cell line (MCF-7 cell line)

Abstract │ Reference (84) │ Times Cited (2) │ Altmetrics

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Indigenous cinnamon (Cinnamomum osmophloeum Kanehira) (Lauraceae) is an endemic tree that grows in Taiwan’s natural hardwood forest. In this research, bioactive compounds were isolated and identified from the leaves of C. osmophloeum. The methanol extract of C. osmphloeum, was portioned successively with n-hexane, ethyl acetate, n-BuOH, and H2O, and a total of twenty compounds were isolated from these fractions of this plant using column chromatography, high performance liquid chromatography (HPLC), gel filtration and recrystallization methods, etc. Compounds including two chlorophylls, two phyto-diterpenoids alcohol, an aldehyde, a fatty acid, steroids and five phenylpropanoid, together with five flavonoid glycosides (F1, F2, F3, F6, and F7), were isolated from the ethyl acetate fraction of the leaves of C. osmophloeum. In addition, two flavonoid glycoside, F4 and F5, were isolated from the n-butanol layer. Among these isolates, kaempferol 3-O -(4’’-E-p-coumaroyl-α-L-rhamnopyranoside) and kaempferol 3-O-(2’’4’’-di-E-p -coumaroyl-α-L-rhamnopyranoside), which were the acylated kaempferol glycoside type structure, were first isolated from this plant. The structure of the above compounds was elucidated on the basis of spectroscopic analysis. Among the above compounds, the biological activity showed that compound (F7) kaempferol 3-O-(2’’4’’-di-E-p-coumaroyl-α-L-rhamnopyranoside) exhibited a strong cytotoxicity (IC50= 6.81 μM) against human breast adenocarcinoma cell line (MCF-7 cell line).
  Finally, we have also proceeded the quantitative analysis of five main components including trans-cinnamaldehyde, cinnamic alcohol, cinnamyl acetate, kaempferitrin, and kaempferol 3-O-α-L-rhamnopyranoside from the methanol extract of the dry leaves of C. osmphloeum using HPLC/UV. Our results demonstrate that the content of trans-cinnamaldehyde were the most abundant (1.38 %).

Reference ( 84 ) 〈TOP〉

1.劉如芸、曹隽瑋、鄭森松、許原瑞、張上鎮，萃取時間及次數對土肉桂葉子　精油成分及其抗腐朽活性的影響，中華林學季刊，2004，37（4）：pp 445-452。
連結：
4.何坤益，台灣產土肉桂、山肉桂、及胡氏肉桂(樟科)之遺傳變異與分類地位，生物學報，2006，41(2)：pp 93-102。
連結：
11.劉如芸，六種化學品性土肉桂葉子精油抗細菌、腐朽菌、病媒蚊幼蟲及室塵螨活性，臺灣大學森林環境暨資源學研究所碩士論文，2005。
連結：
13.黃俐瑋，蘭嶼肉桂葉部成分之研究，臺北醫學大學生藥學研究所碩士論文，2005。
連結：
14.陳甫勣，蘭嶼肉桂莖材部化學及抗結核菌活性成分之研究，高雄醫學大學天然藥物研究所碩士論文，2004。
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