Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Sci Food Agric. 2013 Mar 30;93(5):1035-41. doi: 10.1002/jsfa.5843. Epub 2012 Aug 30.

Chemical composition and functional characterisation of commercial pumpkin seed oil.

Author information

  • 1Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.zle Europa 1, I-34127 Trieste, Italy.

Abstract

BACKGROUND:

Pumpkin (Cucurbita pepo L.) seed oil is a common product in Slovenia, Hungary and Austria and is considered a preventive agent for various pathologies, particularly prostate diseases. These properties are related to its high content of carotenoids and liposoluble vitamins. In this study the carotenoid (lutein and zeaxanthin), vitamin E (α- and γ-tocopherol) and fatty acid contents of 12 samples of commercial pumpkin seed oil were investigated together with the composition of the volatile fraction resulting from the roasting process.

RESULTS:

The aromatic profile obtained from the commercial samples was directly related to the intensity of the roasting process of the crushed pumpkin seeds. The roasting temperature played a crucial role in the concentrations of volatile substances originating from Strecker degradation, lipid peroxidation and Maillard reaction.

CONCLUSION:

The findings suggest that high-temperature roasting leads to the production of an oil with intense aromatic characteristics, while mild conditions, generally employed to obtain an oil with professed therapeutic characteristics, lead to a product with minor characteristic pumpkin seed oil aroma. The nutraceutical properties of the product are confirmed by the high content of α- and γ-tocopherol and carotenoids.

© 2012 Society of Chemical Industry.

PMID:
22936573
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Write to the Help Desk