title: [Study on the extraction method and constituents of papaw seed oil].
abstract: The extraction method and the condition of supersonic extraction to papaw seed were studied. The result showed that supersonic extraction was a good method with less time and high extraction rate. And the orthogonal experiment proved that the best condition was that the papaw seed was extracted 3 time; the proportion of dissolvent and the seed was 1: 10, and the time for once was 20 min. The methyl esterification method and the condition of GC for the fatty acid of oil and its content: C15H31COOH (17.3%), C17 H35COOH (5.22%), C19H39COOH (1.12%), C17H33COOH (69.25%), C17H31COOH (4.31%), C18H35COOH (1.68%), C19H37 COOH (0.75%), C20H39COOH (0.33%). The content of unsatisfied fatty acid was 75.92%.
authors.affiliation: Guangdong Food and Drug Vocational College, Guangzhou 510520, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhu
authors.forename: Ling
authors.initials: L
authors.lastname: Zhu
authors.forename: Man-hong
authors.initials: MH
authors.lastname: Ye
mesh_terms: D031042:Asimina / Q000737:chemistry*; D004951:Esterification; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry / Q000145:classification; D005231:Fatty Acids, Unsaturated / Q000032:analysis / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D008872:Microwaves; D019308:Palmitic Acid / Q000032:analysis / Q000737:chemistry; D010938:Plant Oils / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000295:instrumentation / Q000379:methods*; D013997:Time Factors
chemical_list: D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated; D010938:Plant Oils; D019308:Palmitic Acid