Studies on Improvements of Cirus unshiu Juice Quality and Utilization of Peels

Part IV. Components of various Citrus essential oils recovered from the waste from an In-Line juice extractor

Abstract

Employing Citrus unshiu, Citrus natsudaidai and Citrus kabos, essential oils wererecovered from the waste fluid extruded from an In-Line juice extractor.
Such physical and chemical properties as specific gravity, refractive index, specific rotation, acid value and aldehyde content of each essential oil were examined. Gas chromatography was conducted to separate aromatic constituents. The major components of each essential oil were D-limonene, γ-terpiene, myrcene and α-pinene. As aroma components 25 compounds were found in Citrus unshiu oil, 27 in Citrus natsudaidai oil and 27 in Citrus kabos oil.