@article{uoadl:2981631, volume = "34", number = "18", pages = "2528-2537", journal = "Journal of High Resolution Chromatography (now called Journal of Separation Science)", issn = "0935-6304, 1521-4168", keywords = "Biphasic solvent system; Countercurrent chromatography; Crude rice bran oil; Dual modes; Ferulates; Large-scale isolation; LTQ-Orbitrap; Non-aqueous; One step; Oryzanol; Rice bran oil; Target compound; Triterpenes, Acetonitrile; Hydraulics; Hydrodynamics; Hydroxylation; Liquid chromatography; Organic solvents, Furfural, acetonitrile; butanol; gamma oryzanol; heptane; triterpene, article; chemical analysis; counter current chromatography; fractionation; high performance liquid chromatography; hydroxylation; nonhuman; priority journal; quantitative analysis; rice bran, Countercurrent Distribution; Molecular Structure; Phenylpropionates; Plant Oils; Stereoisomerism", BIBTEX_ENTRY = "article", year = "2011", author = "Angelis, A. and Urbain, A. and Halabalaki, M. and Aligiannis, N. and Skaltsounis, A.-L.", abstract = "The value-added γ-oryzanol was purified in one step from crude rice bran oil (RBO) using a preparative hydrostatic countercurrent chromatography (hydrostatic CCC) method, operating in the dual mode. The fractionation was performed using a non-aqueous biphasic solvent system consisting of heptane-acetonitrile-butanol (1.8:1.4:0.7, v/v/v), leading rapidly to the target compounds. Transfer of the analytical CCC method to large-scale isolation was also carried out yielding a high quantity-high purity fraction of γ-oryzanol. In addition, a fraction of hydroxylated triterpene alcohol ferulates (polar γ-oryzanol) was clearly separated and obtained. Furthermore, a fast HPLC-APCI(±)-HRMS method was developed and applied for the identification of γ-oryzanol as well as the polar γ-oryzanol in RBO and the resulting fractions. The purity of γ-oryzanol fraction was estimated as 97% based on HPLC-APCI-HRMS analysis. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.", title = "One-step isolation of γ-oryzanol from rice bran oil by non-aqueous hydrostatic countercurrent chromatography", doi = "10.1002/JSSC.201100192" }