槐米中蘆丁超聲法和堿溶酸沉法提取比較畢業(yè)論文-文庫吧資料
2025-07-04 01:00本頁面
【正文】 ………………… …… ………… …… ………4 含量測定 ………… ……… …… ………………… …… ………43 結(jié)果與討論 …………… …………………………… …… … …… …5 標準曲線 …… ……… ………… ………… ……………………5 結(jié)果 …… ……… ………… …………………………………………5…… ……… …………………………………………5 …… ……… …………………………………………5 …………… ………… ………… … …………………5………………………………………………………5 檢測方法選擇 …………………………………………………………5 聚酰胺薄膜選擇 ………………………………………………………6 實驗中問題與討論 ……………………………………… …… ……6參考文獻 ……………………………………………………… ………………7附錄（圖） …………………………………… ………………………………8致謝 …………………………………………………………………………11引言 槐米是豆科植物槐的干燥花蕾，含有大量的蛋白質(zhì)和類黃酮化合物，其味苦,微寒,具有涼血止血、清肝瀉火等功效。 Alkali solution and acid precipitation。關鍵詞：槐米；超聲提取法；堿溶酸沉法；紫外分光光度法；聚酰胺薄膜 ABSTRACT This experiment pared ultrasonic extraction with alkali solution and acid precipitation in extraction rate of rutin. Ultrasonic method is soaked Sophora japonica with 70% ethanol, the ultrasonic cleaner carried out the Sophora japonica with 30 minutes .then filtering the solution and carried out the residue in the ultrasonic cleaner again. Collecting the filtrate in beaker and Adjusting the filter’s PH to 3 with concentrated hydrochloric acid. Standing the filter and precipitating pletely. Collecting the precipitate by the filtration. The precipitate is crude extract rutin. Recrystallizating the crude extract rutin in 6070 ℃ water bath and boiling the recrystallizate’s solution on electric furnace with 15 minutes. Filtrating the solution when it is boiling and the filtrate aside until the precipitate pletely. Filtrating the solution, Then collecting the precipitate. The precipitate dried at 65 ℃ in Vacuum
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