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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/36


    Title: 以氣相層析質譜儀檢測紫背草中所含雙稠吡咯啶類生物鹼
    Determination of the Pyrrolizidine Alkaloids in Emilia sonchifolia (L.) DC. by Gas Chromatography-Mass Spectrometry
    Authors: 何寶瑜
    Contributors: 保健營養生技學系碩士班
    Date: 2009
    Issue Date: 2009-10-09 07:43:04 (UTC+0)
    Publisher: 亞洲大學
    Abstract: 紫背草(Emilia sonchifolia (L.) DC. ,別名一點紅、葉上紅、羊蹄甲。在中草藥中有清火、消炎解毒、解熱退燒…等功效。雙稠吡咯啶類生物鹼 (pyrrolizidine alkaloids;PAs) 會導致肝毒性及致癌等生理活性。 本研究收集全台各地之紫背草,經氣相層析質譜儀 (Gas Chromatography - Mass Spectrometry;GC-MS) 分析出紫背草中含有二種類型的PAs:一、 retronecine類型,即senecionine (1)、seneciphylline (2) 和integerrimine (3);與二、otonecine 類型,即senkirkine (4)、otosenine (5)、neosenkirkine (6)、acetyl senkirkine (8)、petasitenine (7)、desacetyldoronine (9)、acetyl petasitenine (10) 和doronine (11),。本實驗以methyl stearate (27) 做為內標準品,分別以兩組五個不同濃度來製作檢量線,檢量線A濃度範圍8-125 μg/mL,檢量線B濃度範圍100-1000 μg/mL。 Senkirkine在紫背草中為含量最高之PAs,其含量為303.5-1131.3 μg/g。本研究結果可提供消費者做為中草藥中是否含有PAs的風險評估依據,以保障國人使用中草藥之健康。
    Appears in Collections:[食品營養與保健生技學系] 博碩士論文

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