, Volume 31, Issue 11, pp 1205–1208 | Cite as

The sterols ofCucurbita moschata (“calabacita”) seed oil

  • Juan B. Rodriguez
  • Eduardo G. Cros
  • Maria H. Bertoni
  • Pedro Cattaneo


From the sterol fraction of seed oil from commercialCucurbita moschata Dutch (“calabacita”) Δ5 and Δ7 sterols having saturated and unsaturated side chain were isolated by chromatographic procedures and characterized by spectroscopic (1H and13C-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-ethylcholesta-7-en-3β-ol (Δ7-stigmastenol) and 24-ethyl-cholesta-7, 24(28)-dien-3β-ol (Δ7,24(28)-stigmastadienol).Lipids 31, 1205–1208 (1996).


Nuclear Magnetic Resonance Nuclear Magnetic Resonance Spectrum Sterol Fraction HPLC Retention Time Cucurbita Moschata 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



gas chromatography-mass spectrometry


high-performance liquid chromatography


high-resolution mass spectrometry


nuclear magnetic resonance


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Copyright information

© AOCS Press 1996

Authors and Affiliations

  • Juan B. Rodriguez
    • 1
  • Eduardo G. Cros
    • 1
  • Maria H. Bertoni
    • 1
  • Pedro Cattaneo
    • 1
  1. 1.Departmento de Química Orgánica (Orientaciones Química Orgánica y Bromatología y Tecnología de Alimentos) Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina

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