Chemical properties and oxidative stability of perilla oils obtained from roasted perilla seeds as affected by extraction methods. 2012

Dong Min Jung, and Suk Hoo Yoon, and Mun Yhung Jung
College of Food Science, Woosuk Univ., Samrea-Up, Wanju-Kun, Jeonbuk Province 565-701, Republic of Korea. munjung@woosuk.ac.kr

The chemical properties and oxidative stability of perilla oils obtained from roasted perilla seeds as affected by extraction methods (supercritical carbon dioxide [SC-CO(2)], mechanical press, and solvent extraction) were studied. The SC-CO(2) extraction at 420 bar and 50 °C and hexane extraction showed significantly higher oil yield than mechanical press extraction (P < 0.05). The fatty acid compositions in the oils were virtually identical regardless of the extraction methods. The contents of tocopherol, sterol, policosanol, and phosphorus in the perilla oils greatly varied with the extraction methods. The SC-CO(2) -extracted perilla oils contained significantly higher contents of tocopherols, sterols, and policosanols than the mechanical press-extracted and hexane-extracted oils (P < 0.05). The SC-CO(2) -extracted oil showed the greatly lower oxidative stability than press-extracted and hexane-extracted oils during the storage in the oven under dark at 60 °C. However, the photooxidative stabilities of the oils were not considerably different with extraction methods.

UI MeSH Term Description Entries
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
D010758 Phosphorus A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. Black Phosphorus,Phosphorus-31,Red Phosphorus,White Phosphorus,Yellow Phosphorus,Phosphorus 31,Phosphorus, Black,Phosphorus, Red,Phosphorus, White,Phosphorus, Yellow
D010938 Plant Oils Oils derived from plants or plant products. Oils, Plant,Oils, Vegetable,Plant Oil,Vegetable Oil,Vegetable Oils,Oil, Plant,Oil, Vegetable
D002849 Chromatography, Gas Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography
D005233 Fatty Alcohols Usually high-molecular-weight, straight-chain primary alcohols, but can also range from as few as 4 carbons, derived from natural fats and oils, including lauryl, stearyl, oleyl, and linoleyl alcohols. They are used in pharmaceuticals, cosmetics, detergents, plastics, and lube oils and in textile manufacture. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Fatty Alcohol,Alcohol, Fatty,Alcohols, Fatty
D006586 Hexanes Six-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives. Various polyneuropathies are caused by hexane poisoning. Hexane,Isohexane,Isohexanes
D012639 Seeds The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield. Diaspores,Elaiosomes,Embryos, Plant,Plant Embryos,Plant Zygotes,Zygotes, Plant,Diaspore,Elaiosome,Embryo, Plant,Plant Embryo,Plant Zygote,Seed,Zygote, Plant
D013058 Mass Spectrometry An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers. Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass
D013261 Sterols Steroids with a hydroxyl group at C-3 and most of the skeleton of cholestane. Additional carbon atoms may be present in the side chain. (IUPAC Steroid Nomenclature, 1987) Sterol
D017962 alpha-Linolenic Acid A fatty acid that is found in plants and involved in the formation of prostaglandins. Linolenic Acid,Linolenate,alpha-Linolenic Acid, (E,E,E)-Isomer,alpha-Linolenic Acid, (E,E,Z)-Isomer,alpha-Linolenic Acid, (E,Z,E)-Isomer,alpha-Linolenic Acid, (E,Z,Z)-Isomer,alpha-Linolenic Acid, (Z,E,E)-Isomer,alpha-Linolenic Acid, (Z,E,Z)-Isomer,alpha-Linolenic Acid, (Z,Z,E)-Isomer,alpha-Linolenic Acid, Ammonium Salt,alpha-Linolenic Acid, Calcium Salt,alpha-Linolenic Acid, Lithium Salt,alpha-Linolenic Acid, Magnesium Salt,alpha-Linolenic Acid, Potassium Salt,alpha-Linolenic Acid, Sodium Salt,alpha-Linolenic Acid, Tin(2+) Salt,alpha-Linolenic Acid, Zinc Salt,alpha Linolenic Acid,alpha Linolenic Acid, Ammonium Salt,alpha Linolenic Acid, Calcium Salt,alpha Linolenic Acid, Lithium Salt,alpha Linolenic Acid, Magnesium Salt,alpha Linolenic Acid, Potassium Salt,alpha Linolenic Acid, Sodium Salt,alpha Linolenic Acid, Zinc Salt

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