Happy Halloween – Stability of Pumpkin Seed Oils

  • Author: ChemistryViews.org
  • Published: 31 October 2015
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: European Journal of Lipid Science and Technology/Wiley-VCH
thumbnail image: Happy Halloween – Stability of Pumpkin Seed Oils

Used as a salad or cooking oil, pumpkin seed oil is a culinary specialty in Central Europe. Roasted, hulled pumpkin seeds are pressed to give the oil. A newer method is cold-pressing technology.

Consumption of pumpkin seed oil has health benefits such as prostate cancer prevention, serum cholesterol-lowering effects, retardation on the progression of hypertension, which are attributed to the unsaturated fatty acid composition and presence of minor compounds such as phytosterols, tocopherols, and carotenoids.

Maria Z. Tsimidou, Aristotle University of Thessaloniki, Greece, and colleagues examined the stability of cold-pressed pumpkin seed oil which does not contain the strong antioxidants formed during seed roasting. They found that its stability is much lower under both autoxidation and photooxidation conditions. The participation of α- and γ-tocopherols and squalene was of similar magnitude in both types of oils in the dark. Under light exposure the losses of these bioactive components were higher suggesting an active participation in photosensitized oxidation. The team concludes that the health benefits of cold-pressed pumpkin seed oil depends on storage conditions, in particular, on light exposure.



Article Views: 2146

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH