Deterpenation of sweet orange and lemon essential oils with supercritical carbon dioxide using silica gel as an adsorbent

A method to deterpenate sweet orange and lemon oils by supercritical fluid extraction (SFE) with carbon dioxide combined with use of silica gel as adsorbent is described. The composition of the oxygenated fractions obtained by SFE was compared to that of deterpenated oils obtained by vacuum distillation, and to that of cold-pressed oils. The deterpenated products obtained by SFE show qualitative composition and quantitative ratios between oxygenated compounds near to those of original oils.

[1]  L. Mondello,et al.  On the Genuineness of Citrus Essential Oils. Part XLIII. The Composition of the Volatile Fraction of Italian Sweet Orange Oils (Citrus sinensis (L.) Osbeck) , 1994 .

[2]  C. S. Narayanan,et al.  Carbon dioxide extraction of indian jasmine concrete , 1991 .

[3]  M. Boelens.  A CRITICAL REVIEW ON THE CHEMICAL COMPOSITION OF CITRUS OILS , 1991 .

[4]  G. A. Iacobucci,et al.  Quantitative analysis of the volatile constituents of lemon peel oil. Effects of silica gel chromatography on the composition of its hydrocarbon and oxygenated fractions , 1991 .

[5]  M. Saito,et al.  Fractionation of lemon-peel oil by semi-preparative supercritical fluid chromatography , 1990 .

[6]  M. Saito,et al.  Isolation of tocopherols from wheat germ oil by recycle semi-preparative supercritical fluid chromatography , 1990 .

[7]  F. Temelli,et al.  Thermodynamic analysis of supercritical carbon dioxide extraction of terpenes from cold-pressed orange oil , 1990 .

[8]  F. Temelli,et al.  Supercritical Carbon Dioxide Extraction of Terpenes from Orange Essential Oil , 1988 .

[9]  R. F. Matthews,et al.  Alcohol Deterpenation of Orange Oil , 1986 .

[10]  G. Dugo,et al.  On the genuineness of citrus essential oils. Part X. Research on the composition of essential oils produced from sicilian lemons using ‘pelatrice’ and ‘sfumatrice’ extractors during the entire 1983/84 production season , 1986 .

[11]  D. Gerard,et al.  Solubility behaviour and fractionation of essential oils in dense carbon dioxide , 1985 .

[12]  P. Crandall,et al.  Preparation and Chemical Composition of Orange Oil Concentrates , 1983 .

[13]  P. Shaw.  Review of quantitative analyses of citrus essential oils , 1979 .

[14]  J. G. Kirchner,et al.  PREPARATION OF TERPENELESS ESSENTIAL OILS. A CHROMATOGRAPHIC PROCESS , 1952 .