| Item type |
デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2007-06-15 |
| タイトル |
|
|
タイトル |
水蒸気蒸留装置設計における考え方 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Designing of steam distillation system for essential oils |
|
言語 |
en |
| 作成者 |
川崎, 聖司
池間, 洋一郎
國吉, 和男
秋永, 孝義
Kawasaki, Seiji
Ikema, Youitirou
Kuniyoshi, Kazuo
Akinaga, Takayoshi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
|
|
言語 |
ja |
|
主題Scheme |
Other |
|
主題 |
水蒸気蒸留装置 |
| 主題 |
|
|
言語 |
ja |
|
主題Scheme |
Other |
|
主題 |
精油 |
| 主題 |
|
|
言語 |
ja |
|
主題Scheme |
Other |
|
主題 |
熱伝導 |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
steam distillation system |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
essential oils |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
heat transfer |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Different processing methods are required to extract essential oils from different plants. Most oils are extracted using steam distillation, during which the plant tissues break down, the essential oils and water vapor are released, then collected and cooled. The volatile essential oil condenses, separates and is easily isolated. In this process the steam is prepared in a separate chamber and piped into the tank. This is especially good for plant materials with high boiling point oils.\nEssential oils can be extracted using solvents. Hydro-distillation is not suitable for various products like delicately odored oils. There are three main ways that this can be performed. Solvent extraction is used when the odorous properties of delicate flower and plant material would be altered or destroyed by steam or water distillation or when a plant, for instance rose absolute and jasmine contains very little oil, making steam or water distillation impractical. Solvent extraction produces a concrete which in turn is refined into an absolute. The solvent dissolves the plants constituents including essential oils, fatty acids and waxes. The essential oil is extracted from the other constituents with alcohol. The fatty acids and waxes are not alcohol soluble so they are left behind. A secondary distillation then removes the alcohol, leaving the absolute oil behind. Supercritical carbon dioxide extraction uses carbon dioxide under extremely high pressure to extract essential oils. In the future, many botanicals that are not now available may possibly be obtained through carbon dioxide extraction.\nA fundamental study to design new types of extraction systems for essential oils and a trial steam distillation systems was made. After leaves of alpinia were harvested, steam distilled essential oils were analyzed. Heat transfer of the system were also discussed. Good extraction results and performance were observed with this apparatus. Comparing heat and mass transfer on the experiments, it can be seen that the convection coefficient of essential oils seemed to be applicable to that of the theory of chemical engineering and some improvement of designing was necessary. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
紀要論文 |
| 出版者 |
|
|
出版者 |
琉球大学農学部 |
|
言語 |
ja |
| 言語 |
|
|
言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 出版タイプ |
|
|
出版タイプ |
NA |
|
出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| 識別子 |
|
|
識別子 |
http://hdl.handle.net/20.500.12000/571 |
|
識別子タイプ |
HDL |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0370-4246 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00250548 |
| 収録物名 |
|
|
収録物名 |
琉球大学農学部学術報告 |
|
言語 |
ja |
| 収録物名 |
|
|
収録物名 |
The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus |
|
言語 |
en |
| 書誌情報 |
号 53,
p. 25-30,
発行日 2006-12
|
05_kawasaki.pdf
