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Foods 2018, 7(3), 30;

Chemical and Nutritional Characterization of Seed Oil from Cucurbita maxima L. (var. Berrettina) Pumpkin

Department of Pharmaceutical Sciences Section of Food Science and Nutrition, University of Perugia, Via San Costanzo, 06126 Perugia, Italy
Department of Pharmacy, University of Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 29 January 2018 / Revised: 19 February 2018 / Accepted: 21 February 2018 / Published: 1 March 2018
(This article belongs to the Special Issue Nutraceuticals: The New Frontier)
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Pumpkin (Cucurbita spp.) has received considerable attention in recent years because of the nutritional and health-protective value of seed oil. The nutritional composition of pumpkin native to central Italy, locally known as “Berrettina” (Cucurbita maxima L.), was evaluated. In particular, the lipid fraction of seed oil was characterized, and the triacylglycerol (TAG) was thoroughly studied by using a stereospecific procedure to obtain the intrapositional fatty acid composition of the three sn-positions of the glycerol backbone of TAG. Moreover, alkaline hydrolysis was carried out to study the main components of the unsaponifiable fraction, i.e., sterols and alcohols. It was observed that monounsaturated fatty acids and polyunsaturated fatty acids were the most abundant (41.7% and 37.2%, respectively) in Berrettina pumpkin seed oil, with high content of oleic and linoleic acid (41.4% and 37.0%, respectively). The main sterols of Berrettina pumpkin seed oil were Δ7,22,25-stigmastatrienol, Δ7,25-stigmastadienol, and spinasterol; with regard to the alcoholic fraction, triterpenic compounds were more abundant than aliphatic compounds (63.2% vs. 36.8%). The obtained data are useful to evaluate pumpkin seed oil from a nutritional point of view. The oil obtained from the seed could be used as a preservative and as a functional ingredient in different areas, e.g., cosmetics, foods, and nutraceuticals. View Full-Text
Keywords: pumpkin seed oil; fatty acids; stereospecific analysis; sterols; alcohols pumpkin seed oil; fatty acids; stereospecific analysis; sterols; alcohols

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Montesano, D.; Blasi, F.; Simonetti, M.S.; Santini, A.; Cossignani, L. Chemical and Nutritional Characterization of Seed Oil from Cucurbita maxima L. (var. Berrettina) Pumpkin. Foods 2018, 7, 30.

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