title: Novel method for isolation of major phenolic constituents from cashew (Anacardium occidentale L.) nut shell liquid.
abstract: Commercially available cashew (Anacardium occidentale L.) nut shell liquid (CNSL) mainly contains the phenolic constituents anacardic acid, cardol, and cardanol. These phenolic constituents are themselves heterogeneous, and each of them contains saturated, monoene, diene, and trienes in the fifteen-carbon side chain. This communication describes the separation of anacardic acid, cardol, and cardanol for industrial application. Anacardic acid was selectively isolated as calcium anacardate. The acid-free CNSL was treated with liquor ammonia and extracted with hexane/ethyl acetate (98:2) to separate the mono phenolic component, cardanol. Subsequently, ammonia solution was extracted with ethyl acetate/hexane (80:20) to obtain cardol.
authors.affiliation: Vittal Mallya Scientific Research Foundation, P.O. Box 406, K. R. Road, Bangalore - 560 004, India.
authors.forename: R
authors.initials: R
authors.lastname: Paramashivappa
authors.forename: P P
authors.initials: PP
authors.lastname: Kumar
authors.forename: P J
authors.initials: PJ
authors.lastname: Vithayathil
authors.forename: A S
authors.initials: AS
authors.lastname: Rao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D009754:Nuts / Q000737:chemistry*; D010636:Phenols / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D010636:Phenols