洋甘菊浸膏分子蒸餾分離工藝研究

化工論文編號:HG081  論文字數:13226,頁數:28

 目  錄
中文摘要 I
英文摘要 II
目  錄 III
1  概述 1
1.1 植物精油研究概述 1
1.2 植物精油的提取方法 2
1.3  洋甘菊的研究概況 5
1．4 研究內容概述 8
2  實驗部分 9
2.1 實驗材料與試劑 9
2.2  實驗方法 9
2.3  結果與討論 12
2.4  洋甘菊精油的氣相色譜分析 13
3 結果與討論 17
3．1 分子蒸餾工藝條件單因素試驗 17
3. 2 結論 20
4 總結與展望 21
4.1 總結 21
4.2 展望 21
參考文獻 23

摘 要：洋甘菊是古老的芳香植物之一，因具有抗炎、解痙、消毒作用而被廣泛應用。本論文以新疆產洋甘菊為原料，通過超臨界二氧化碳萃取獲得浸膏，再采用分子蒸餾對洋甘菊浸膏進行分離獲得精油。考察了進料溫度、蒸發溫度和刮膜轉速等因素對洋甘菊精油分離效果的影響。通過試驗 ,初步得到工藝參數為:進料溫度為90℃,蒸發溫度為150℃,操作壓力1~3Pa,刮膜器轉300r /min,分離過程總收率大于23%，并通過氣相色譜進行分析并和標準品對照。
 關鍵詞:洋甘菊；浸膏；分子蒸餾；分離

The Research on Extraction of Chamomile Essential Oil by Molecular Distillation

Abstract: As its anti-inflammatory,antispasmodic,disinfectant and choleretic effect, chamomile has been widely used. In the research, the materials of chamomile was planted inxinjiang，Obtained extract by supercritical carbon dioxide extraction, then Purificati on of Chamomile oil bymolecular distillati on was studied experi mentally . The effects of operating parameters such as feeding rate, feeding temperature, the s peed of thinfil mevaporat or and evaporation temperature on separati on efficiency of Chamomile oil had been discussed in this article. Suitable operatingparameters obtained from the experi mentwere: feeding temperature is 90℃distillati on temperature is 150℃, therate of thinfil mevaporat or is 300 r /min and operating pressure is 3Pa . Through the menti onedmethod, the total recovery ofmore than 23%，and analyzed by gas chromatography and comparie with standard,
Keywords：Chamomile; Chamomile essential oil; Extraction; molecular distillation; extraction; separation