title: Physicochemical characteristics of the cold-pressed oil obtained from seeds of Fagus sylvatica L.
abstract: A physicochemical characteristic of the cold-pressed oil obtained from seeds of common beech (Fagus sylvatica L.) has been presented. This plant may be considered as unconventional oilseeds crops because of relatively high content of fat (27.25%). The analyzed beech seeds oil has been classified as oleic-linoleic acids oil with more than 76% percentage share of those species. Beech seeds oil contains 4.2% of gamma-linolenic acid (GLA). Unique characteristic is the high content of γ-tocopherol (75.4mg/100g) and δ-tocopherol (34.05mg/100g). γ-Tocopherol is effective scavengers of reactive nitrogen species and prevents DNA bases nitration, what makes beech seeds oil interesting raw material in the production of cosmetics. Additionally the content of carotenoids, very effective photooxidation inhibitors, is at high level in comparison with other cold-pressed oils. It was demonstrated that PCA analysis may help to determine the authenticity of oil obtained from beech seeds.
authors.affiliation: Department of Biochemistry and Food Analysis, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, Poland. Electronic address: aleksander.siger@op.pl.
authors.forename: Aleksander
authors.initials: A
authors.lastname: Siger
authors.affiliation: Department of Biochemistry and Food Analysis, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Dwiecki
authors.affiliation: Department of Forest Management, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Borzyszkowski
authors.affiliation: Department of Forest Management, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland.
authors.forename: Mieczysław
authors.initials: M
authors.lastname: Turski
authors.affiliation: Institute of Food Technology, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Rudzińska
authors.affiliation: Department of Biochemistry and Food Analysis, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, Poland.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Nogala-Kałucka
mesh_terms: D055598:Chemical Phenomena; D029964:Fagus / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*
chemical_list: D010938:Plant Oils
keywords: Cold-pressed oil; Fagus sylvatica L.; Fatty acids; Gamma-linolenic acid; Phytosterols; Tocopherols