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Bibliographic record number: 699984

Journal

Authors: Neđeral, Sandra; Petrović, Marinko; Vincek, Dragutin; Pukec, Dragutin; Škevin, Dubravka; Kraljić, Klara; Obranović, Marko
Title: Variance of quality parameters and fatty acid composition in pumpkin seed oils during three crop seasons
Source: Industrial crops and products (0926-6690) 60 (2014); 15-21
Paper type: article
Keywords: pumpkin seed oil; fatty acids; climate conditions; processing; PCA
Abstract:
Roasted and cold-pressed pumpkin seed oil obtained from pumpkin seeds (Cucurbita pepo, L.) from the 2010/2011 to 2012/2013 crop seasons were analyzed to determine the basic quality parameters (free fatty acids and peroxide value) as well as content of cis and trans fatty acids. Free fatty acids and peroxide values were within the legal limits in all except one of the roasted samples and were influenced by climate conditions of a particular crop season, while the significance of influences due to processing conditions was not determined. Gas chromatography revealed a total of 12 cis and 3 trans fatty acids in pumpkin seed oil. The dominant fatty acids in all seed oil samples were linoleic, oleic, palmitic, and stearic (98.8 ± 0.18%). Their content was significantly affected by the crop season and processing. Higher amounts of saturated and monounsaturated fatty acids were noted in oil from a crop season with higher air temperature and in cold-pressed oil. All pumpkin seed oil contained palmitoleic fatty acid (0.10 – 0.14%) which is listed as “not detected” in the authenticity requirements for pumpkin seed oil in regulations of various EU countries. The content of trans fatty acids was significantly higher in roasted seed oil (0.03% - 0.39%) than in cold- pressed oil (0.03% - 0.05%).
Original language: ENG
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Food processing technology
URL: http://www.sciencedirect.com/science/article/pii/S0926669014003239
Broj citata:
Altmetric:
DOI: 10.1016/j.indcrop.2014.05.044
URL cjelovitog rada:
Google Scholar: Variance of quality parameters and fatty acid composition in pumpkin seed oils during three crop seasons
Contrib. to CROSBI by: Sandra Neđeral (snedjer@pbf.hr), 4. Lip. 2014. u 12:38 sati



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