Enrichment of eicosenoic and docosadienoic acids fromLimnanthes oil

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 1977 English Publisher:WileyJournal:Journal of the American Oil Chemists' Society, volume 54, pages 549-552 (issn: 0003-021X, eissn: 1558-9331,

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Authors: Shu‐Pei Chang; J. A. Rothfus;

doi: 10.1007/bf02909080

Enrichment of eicosenoic and docosadienoic acids fromLimnanthes oil

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Abstract

Abstract and summaryThe long chain (>C18) monoene and diene acids ofLimnanthes oil are useful in synthesizing diene and tetraene wax ester intermediates for prospective lubricant additives and PVC plasticizers. Low‐temperature crystallization of theL. alba acids (61% eicosenoic, 19% docosadienoic, and 20% others) in acetone (initial concentration=0.05 g/ml) at −50 C enriches eicosenoic acid (74%) in the precipitated fraction while concentrating docosadienoic (70%) in the supernatant fraction. This simple and efficient process is well suited for large‐scale laboratory separations.

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