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Hydrophobic ionic liquid‐based ultrasound‐assisted extraction of magnolol and honokiol from cortex Magnoliae officinalis
Author(s) -
Zhang Lijin,
Wang Xiao
Publication year - 2010
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201000076
Subject(s) - magnolol , honokiol , ionic liquid , extraction (chemistry) , chromatography , magnolia officinalis , chemistry , ultrasonic sensor , ultrasound , organic chemistry , medicine , alternative medicine , traditional chinese medicine , pathology , radiology , catalysis
Abstract The hydrophobic ionic liquid of [BMIM][PF 6 ] was successfully used for the ultrasound‐assisted extraction of hydrophobic magnolol and honokiol from cortex Magnoliae officinalis . To obtain the best extraction efficiencies, some ultrasonic parameters including the concentration of [BMIM][PF 6 ], pH, ultrasonic power and ultrasonic time were evaluated. The results obtained indicated that the [BMIM][PF 6 ]‐based ultrasound‐assisted extraction efficiencies of magnolol and honokiol were greater than those of the [BMIM][BF 4 ]‐based ultrasound‐assisted extraction (from 48.6 to 45.9%) and the traditional ethanol reflux extraction (from 16.2 to 13.3%). Furthermore, the proposed extraction method is validated by the recovery, correlation coefficient ( R 2 ) and reproducibility (RSD, n =5), which were 90.8–102.6, 0.9992–0.9998, and 1.6–5.4%, respectively.