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Rapid Extraction of Essential Oil from Dried Cinnamomum cassia Presl and Forsythia suspensa (Thunb.) Vahl by Ionic Liquid Microwave Extraction
Author(s) -
Zhai Yujuan,
Sun Shuo,
Song Daqian,
Sun Ye,
Zhang Yupu,
Liu He,
Zhang Hanqi,
Yu Aiming
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201190031
Subject(s) - cinnamomum , chemistry , ionic liquid , cassia , extraction (chemistry) , chromatography , solvent , microwave , essential oil , organic chemistry , medicine , physics , alternative medicine , pathology , traditional chinese medicine , quantum mechanics , catalysis
Ionic liquid (IL) was used as the microwave absorption medium to extract essential oils from dried Cinnamomum cassia Presl and Forsythia suspensa (Thunb.) Vahl, and the ionic liquid microwave extraction (ILME) was developed. Some experimental parameters for ILME were examined. The proposed method was compared with other methods, including hydrodistillation (HD), microwave hydrodistillation (MHD), solvent‐free microwave extraction (SFME) and improved solvent‐free microwave extraction (ISFME). Experimental results showed that compared with other extraction methods the ILME had some advantages, such as time‐saving, simplicity and usage of green solvents. The extraction time was less than 18 min at the microwave power of 440 W and 1.5 mL of ionic liquid was required. The constituents of essential oils obtained by the five methods are not obviously different.