The sterols of Cucurbita moschata ('calabacita') seed oil

From the sterol fraction of seed oil from commercial Cucurbita moschata Dutch ('calabacita') Δ5 and Δ7 sterols having saturated and unsaturated side chain were isolated by chromatographic procedures and characterized by spectroscopic (1H and 13C-nuclear magnetic resonance, mass spectrometr...

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Detalles Bibliográficos
Autores principales: Rodriguez, J.B., Gros, E.G., Bertoni, M.H., Cattaneo, P.
Formato: JOUR
Materias:
sterol
vegetable oil
article
gas chromatography
lipid analysis
mass spectrometry
nuclear magnetic resonance
plant seed
Chromatography, High Pressure Liquid
Gas Chromatography-Mass Spectrometry
Magnetic Resonance Spectroscopy
Mass Spectrometry
Molecular Structure
Plant Oils
Seeds
Stereoisomerism
Sterols
Cucurbita moschata
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244201_v31_n11_p1205_Rodriguez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:From the sterol fraction of seed oil from commercial Cucurbita moschata Dutch ('calabacita') Δ5 and Δ7 sterols having saturated and unsaturated side chain were isolated by chromatographic procedures and characterized by spectroscopic (1H and 13C-nuclear magnetic resonance, mass spectrometry) methods. The main components were identified as 24S-ethyl 5α-cholesta- 7,22E-dien-3β-ol (α-spinasterol); 24S-ethyl 5α-cholesta-7,22E,25-trien- 3β-ol (25-dehydrochondrillasterol); 24S-ethyl 5α-cholesta-7,25-dien-3β- ol; 24R-ethyl-cholesta-7-en-3β-ol (Δ7-stigmastenol) and 24-ethyl-cholesta- 7,24(28) dien-3β-ol (Δ(7,24(28))-stigmastadienol).

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