Hydrophobic ionic liquid-based ultrasound-assisted extraction of magnolol and honokiol from cortex Magnoliae officinalis.
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.
Zhang
Lijin
L
Department of Food Science, Tianjin Agricultural University, Tianjin, P. R. China. sdzhanglee@sina.com
Wang
Xiao
X
D001713:Biphenyl Compounds / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D057927:Hydrophobic and Hydrophilic Interactions; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D017705:Lignans / Q000302:isolation & purification*; D031566:Magnolia / Q000737:chemistry*; D015394:Molecular Structure; D012997:Solvents / Q000737:chemistry; D014465:Ultrasonics; D000498:Allyl Compounds; D010636:Phenols
D001713:Biphenyl Compounds; D004365:Drugs, Chinese Herbal; D007093:Imidazoles; D052578:Ionic Liquids; D017705:Lignans; D012997:Solvents; C412621:1-butyl-3-methylimidazolium hexafluorophosphate; C005498:magnolol; C005499:honokiol; D000498:Allyl Compounds; D010636:Phenols