Nonvolatiles of commercial lime and grapefruit oils separated by high-speed countercurrent chromatography

Journal of Agricultural and Food Chemistry
Wolfgang FegerHerta Ziegler

Abstract

The nonvolatile fractions of cold-pressed peel oils of Key and Persian lime as well as grapefruit were separated by high-speed countercurrent chromatography (HS-CCC). In addition to the isolation of the main coumarins, psoralens and polymethoxyflavones, a number of minor constituents were enriched and successfully characterized by GC-MS and HPLC-UV. 5,7,8-Trimethoxycoumarin and the cyclical acetals of oxypeucedanin hydrate with citral were determined as new nonvolatile trace constituents of lime oils and confirmed by NMR spectroscopy. The citral oxypeucedaninyl acetals were found particularly in Key lime oil type A, which as a result of the juice-oil contact, is exposed to acidic conditions during industrial processing. Some of the confirmed minor constituents, such as pabulenol, isooxypeucedanin, and oxypeucedanin methanolate in lime as well as auraptenol in grapefruit, may have been generated by hydrolysis-sensitive precursors during CCC separation or their respective industrial processing techniques.

References

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May 13, 2004·Journal of Agricultural and Food Chemistry·Elzbieta M Kurowska, John A Manthey
Nov 13, 2004·Journal of Agricultural and Food Chemistry·Eric Frérot, Erik Decorzant

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Citations

Nov 18, 2010·Journal of Natural Medicines·Eunjin ShinMi Kyeong Lee
Nov 4, 2009·Toxicology in Vitro : an International Journal Published in Association with BIBRA·Christiane LohrDieter Schrenk
Feb 20, 2010·Journal of Separation Science·Fernanda das Neves Costa, Gilda Guimarães Leitão
Sep 29, 2011·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Anastasia MesserDieter Schrenk
Jun 10, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ping-Chung KuoTian-Shung Wu
Sep 29, 2018·Food Science and Biotechnology·Wei-Hong LiangYuh-Chyang Charng
Aug 20, 2009·Journal of Natural Products·Thaïs B CésarKyung Myung
Sep 3, 2009·Journal of Agricultural and Food Chemistry·Paola DugoLuigi Mondello
Aug 12, 2008·Journal of Agricultural and Food Chemistry·Hao LiangFrank Vriesekoop
Aug 29, 2021·Plants·Javad Mottaghipisheh
Dec 12, 2007·Journal of Agricultural and Food Chemistry·J Brent Friesen, Guido F Pauli

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