Selective removal of monoterpenes from bergamot oil by inclusion in deoxycholic acid.
A new approach for removing monoterpenes (MTs) from bergamot oil by selective inclusion in deoxycholic acid (DCA) is proposed. The inclusion process is very efficient, the included fraction being composed mainly of limonene (71.7%) and gamma-terpinene (19.8%). On the other hand, the deterpenated bergamot oil fraction showed for the linalool and linalyl acetate derivatives significant increases from 16.6 and 21.4% to 18.3 and 42.2%, respectively. The major advantages of this methodology are its simplicity, the mild conditions employed, and the quantitative recovery of both host (DCA) and guest (monoterpenes) compounds. Differential scanning calorimetry (DSC), thermal gravimetry (TG), powder X-ray diffractometry (XRPD), infrared spectroscopy (IR), and proton magnetic resonance ((1)H NMR) analysis were used to investigate and characterize the inclusion compounds.
Fantin
Giancarlo
G
Dipartimento di Chimica, Universita di Ferrarà, Ferrara, Italy. fnn@unife.it
Fogagnolo
Marco
M
Maietti
Silvia
S
Rossetti
Stefano
S
D002152:Calorimetry, Differential Scanning; D003840:Deoxycholic Acid / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D039821:Monoterpenes / Q000302:isolation & purification*; D010938:Plant Oils / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D014961:X-Ray Diffraction
D039821:Monoterpenes; D010938:Plant Oils; D003840:Deoxycholic Acid; C068336:bergamot oil