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二氧化碳超臨界萃取法與有機溶劑萃取法對紫草成分抽提含量與安定性研究

二氧化碳超臨界萃取法與有機溶劑萃取法對紫草成分抽提含量與安定性研究. 以二氧化碳超臨界萃取法與有機溶劑萃取法對紫草作一抽提實驗 , 以比較其抽提效果 , 組 成成分及其對熱安定性之異同 . 結果以高密度性 (Density), 低黏度性 (Viscosity) 的溶劑具 有最佳的抽提效果 . 超臨界萃取法的粗抽提物具純度較高的總紫草素含量 . 凡於有機溶劑中 所能被抽提出來之 Naphthoquinone analogues 成分 , 於二氧化碳超臨界抽提中亦能全數被

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二氧化碳超臨界萃取法與有機溶劑萃取法對紫草成分抽提含量與安定性研究

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  1. 二氧化碳超臨界萃取法與有機溶劑萃取法對紫草成分抽提含量與安定性研究二氧化碳超臨界萃取法與有機溶劑萃取法對紫草成分抽提含量與安定性研究 • 以二氧化碳超臨界萃取法與有機溶劑萃取法對紫草作一抽提實驗,以比較其抽提效果,組 • 成成分及其對熱安定性之異同.結果以高密度性(Density),低黏度性(Viscosity)的溶劑具 • 有最佳的抽提效果.超臨界萃取法的粗抽提物具純度較高的總紫草素含量.凡於有機溶劑中 • 所能被抽提出來之Naphthoquinone analogues 成分,於二氧化碳超臨界抽提中亦能全數被 • 抽提出來.在35''C,2500psi之二氧化碳超臨界抽提條件中,更能抽出異於有機溶劑抽提法之 • 未知名X 成分(分子量390).二氧化碳與有機溶劑之紫草粗抽提物的安定性依序為:非極性 • 有機溶劑>二氧化碳超臨界流體>極性有機溶劑

  2. Studies on the Recovery and Stability of Components in Macrotomia euchroma Extracted with SFE Versus OSE • The compositions and heat stability of six organic solvent and supercriticalf • luid carbon dioxide ( CO2) extracts of M. euchroma were analyzed throughUV/VIS • spectrometry and RP-HPLC. CO2 extraction results in more naphthoquinoneanalog • ues amount and species than organic solvent extraction. Among the six organic • solvents used, high density with low viscosity yields greater amountof total n • aphthoquinones. The accelerated heat stability order on these extractsis non-p • olar organic solvents > CO2 > polar organic solvents.

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