頁籤選單縮合
| 題 名 | 食茱萸精油含量及化學成分研究 |
|---|---|
| 作 者 | 謝瑞忠; | 書刊名 | 林業試驗所研究報告季刊 |
| 卷 期 | 8:4 1993.12[民82.12] |
| 頁 次 | 頁307-320 |
| 分類號 | 436.188 |
| 關鍵詞 | 食茱萸; 精油; 含油量; 化學成分; Fagara ailanthoides; Essential oil; Oil content; Chemical component; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究係探尋不同季節,不同蒸餾時間嫩葉與老葉之食茱萸(Fagara ailanthoides)葉部精油含量及其化學成分之變化,精油含量係使用水蒸氣蒸餾法 測定,化學成分係採用氣相層析儀之滯留時間(retention time) 及GC-MS之質譜 圖鑑定。在不同季節中夏季〔2.51%(v/w)〕含精油量最高,次為春季〔2.19%(v/w)〕, 再次為秋季〔2.13%(v/w)〕,最低者為冬季〔0.95%(v/w)〕。在不同蒸餾時間之含 油量顯示含油量隨蒸餾時間而增加,但蒸餾6小時以後含量增加不大,嫩葉含油 量比老葉稍高。使用GC及GC-MS鑑定出食茱萸精油成分計有36個成分,主要成分為 α-pinene, β-pinene,β-phellandrene,β-terpineol及β-caryophyllene等, 其他成分如 α-limonene等31個成分。在不同季節之成分含量主要成分春季為β- terpineol (含量為53.11%),夏、秋及冬季等主要成分為β-pinene,含量依序分別 為61.66, 53.73及29.05%。顯然隨季節之不同所含成分及含量有差別。成分含 量變化不大,嫩葉及老葉之主要成分均為β-pinene成分含量差異不大,有關食 茱萸葉利用,本研究建議嫩葉可直接提供當食品調味或生吃,老葉則直接提供提 煉精油。 |
| 英文摘要 | The purposes of this study were to determine the variation in yields and components of essential oil arose from seasonal variation, different distillation times, and young and old leaves in the leaves of Fagara ailanthoides. Essential oils were obtained by steam distillation. Components of the extracted essential oils were analyzed and identified by retention time (Rt) of gas chromatograph (GC) and gas chromatograph-mass spectrometry (GC-MS). For season variation in the yields of essential oils of F. ailanthoides, the best yield was observed in summer (2.51%v/w), followed by spring (2.19%v/w), and autum (2.13%v/w), and the lowest yield was in winter (0.95%v/w). Yields of essential oils obtained from F. ailanthoides leaves distilled for 2, 4, 6 and 8 hours were 1,21, 1.71, 2.20 and 2.26%v/w, respectively. The yield of essential oil increased with increasing distillation time and showed no significant differences after 6 hours of distillation. There was no observable differences in the yield of essential oils between young and old leaves. Thirty six volatile compounds (Table 4) were identified in the essential oil of F. ailanthoides leaves. The major component were α-pinene, β-pinene, β- phellandrene, β-terpineol and β-caryophyllene. Major components of F. ailanthoides leaves at different seasons were β-terpineol (53.11%) in spring, and β- pinene in summer (61.66%), autum (53.73), and winter (29.05%), the essential oil gives varying component content at different season. At different distillation periods, the major component was always β-pinene, there were no significant difference in content of each component with respect to distilltion time. The major components of both young and old leaves were β-pinene, and there was no observable difference in component content as well. Fresh young leaves are suggested to be used as food directly, while old leaves are best used in extraction for essential oil. |
本系統中英文摘要資訊取自各篇刊載內容。