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題 名 | 白芷之抗氧化活性成分=Antioxidative Principles of Angelica dahurica var. pai chi |
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作 者 | 蔡國權; 楊玲玲; | 書刊名 | 臺灣科學 |
卷 期 | 50:1 1997.06[民86.06] |
頁 次 | 頁139-153 |
分類號 | 414.33 |
關鍵詞 | 白芷; 砆喃香豆素; 抗氧化; 肝均質液; 脂質過氧化抑制; Pai-chi; Furanocoumarins; Antioxidation; Liver homogentate; Anti-lipid peroxidation; |
語 文 | 中文(Chinese) |
中文摘要 | 本論文為抗氧化中藥材之開發研究,首先乃應用簡單、快速、經濟之亞麻仁油酸 氧化法 (oxidation of linoleic acid),篩選中藥中具有抗氧化作用之藥材。 結果發現白 芷 Angelica dahurica var. pai-chi 之正己烷抽取物具有抗氧化活性 (IC �t =1.48 mg/ml) , 乃大量抽取分離活性部分, 配合活性追蹤, 進行抗氧化之生物活性 (antioxidation bio-assay) 測定,以肝細胞均質液之脂質過氧化抑制探討。其測定法乃利 用 ICR 鼷鼠肝臟體外試驗以肝細胞均質液, 經過氧化物誘導劑丁基過氧化氫 (tert-butyl hydroperoxide; t-BOOH) 誘生脂質過氧化, 再加入硫代巴比妥酸 (thiobarbituric acid; TBA) 作用, 產生丙二醛 (malondialdehyde; MDA) , 以四乙氧基丙烷 (tetra-ethoxylpropane; TEP) 為標準,應用高效液相層析 (HPLC) 進行 MDA(TBA) �砟妝w 量, 來評估其抗脂質過氧化活性之效價。 結果發現白芷對肝細胞脂質過氧化抑制活性 cnidilin IC �t =4.15 mg/ml, imperatorin IC �t =6.55 mg/ml,isoimperatorin IC �t =9.72 mg/ml,(對照組 Vit. E, IC �t 3.32 mg/ml),顯示白芷中之活性成分具有抗氧化作 用。 |
英文摘要 | We have established a method based on the air oxidation of linoleic acid, one of the essential fatty acids, by air bubbling to screen the antioxidative Chinese herbs, and found the n-hexane extract of Angelica dahurica var. pai-chi possessed strong antioxidative activity (IC �t =1.45 mg/ml), so we used silica gel chromatography to isolated the antioxidative components which compounds were identified cnidilin, imperatorin and isoimperatorin by mass and infared spectrometer as well as their physical constant. A reversed-phase high performance liquid chromatographic method is described for the determination of malondialdehyde biological materials, liver homogenates. The standard test for lipid peroxidation is the measurement of the pink, 532 nm absorbing chromogen formed upon reaction with 2-thiobarbituric acid. This reaction depends upon the presence of the lipid peroxidation product malondialdehyde (MDA) which reacts with 2-thiobarbituric acid (TRA) to form MDA (TBA) �� adduct and absorption maximum at 532 nm. We found the anti lipid peroxidative activity for liver homogenate, IC �t =4.15 mg/ml in cnidilin, 6.55 mg/ml in imperatorin, and 9.72 mg/ml in isoimperatorin. (positive control Vit. E, IC �t =3.32 mg/ml) |
本系統中英文摘要資訊取自各篇刊載內容。