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題 名 | 化妝品常用二十種精油清除DPPH自由基之能力、總酚含量及紅百里香精油主要化學成分分析之研究=Investigation of Commercial Used 20 Kinds of Essential Oils in DPPH Free Radical Scavenging Ability and Total Phenolic Contents as Well as the Major Chemical Compositions of Thyme Red Essential Oil |
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作 者 | 王曉芬; 王有綱; 易光輝; | 書刊名 | 弘光學報 |
卷 期 | 51 2007.11[民96.11] |
頁 次 | 頁123-132 |
分類號 | 466.61 |
關鍵詞 | 精油; 抗氧化; 二苯聯苦基; DPPH自由基; 總酚含量; 半數有效抑制濃度; 氣相層析質譜儀; EC50; Essential oils; Antioxidant; 1, 1-diphenyl-2-picry1hydrazyl; DPPH; Total phenolic contents; Effective concentration 50; Gas chromatography-mass spectrometer; GC-MS; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究主要為分析化妝品常用之二十種精油對於清除DPPH (1,1-diphenyl-2-picrylhydrazyl)自由基、總酚含量與其主要之化學成分之分析。結果顯示二十種試驗樣品中以紅百里香精油(Thyme red essential oil)之總酚量與清除DPPH自由基之能力最為顯著。當樣品濃度10mg/ml時,能清除92.29%之DPPH自由基,半數有效抑制濃度(EC50)為1563μg/ml,以氣相層析質譜儀鑑定其主要之化學成分,發現紅百里香精油中含有高比例的百里香酚(Thymol),含量為64.25%。綜合以上之結果,證明精油中酚類化合物的含量與清除DPPH自由基之抗氧化能力成正相關係。 |
英文摘要 | 20 kinds of commonly used essential oils were employed to investigate the DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging ability, total phenolic contents and analysis of the major chemical compositions. The free radical scavenging ability and total phenolic contents of Thyme red is the best in these essential oils. 10mg/ml of Thyme red essential oil was shown 92.29% of the DPPH free radical scavenging ability and its EC50 is 1563μg/ml. 64.25% of thymol in Thyme red essential oil was analyzed by GC-MS. It is clear that the amount of the phenol compounds in essential oils and the DPPH free radical scavenging ability is in direct proportion. |
本系統中英文摘要資訊取自各篇刊載內容。