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Bad Münster am Stein-Ebernburg, Germany

Matthaus B.,Institute for Lipid Research | Ozcan M.M.,Selcuk University | Al Juhaimi F.,King Saud University
Zeitschrift fur Arznei- und Gewurzpflanzen | Year: 2015

The oil content, fatty acid composition and tocopherol contents of turpentine and stone pine fruits were determined. The oil contents of turpentine and stone pine fruits changed between 40.27% (P. terebinthus Alanya) and 47.41% (P. terebinthus Hatay Belen) to 53.05% (P. pinea Izmir) and 46.59% (P. pinea Mersin). The most abundant fatty acids in turpentine fruit oil were palmitic, oleic and linoleic acids. While the contents of oleic acid varied between 34.7 % (P. pinea Izmir) and 50.8% (P. terebinthus Alanya), linoleic acid changed between 18.5% (P. terebinthus Hadim) and 48.3% (P. pinea Izmir). The major tocopherols were α-tocopherol, α-tocotrienol, ¥-tocopherol, ¥-tocotrienol and Δ-tocotrienol in all varieties of turpentine fruit. α-Tocopherol contents of oils varied between 3.4 mg/100 g (P. pinea Izmir) and 20.7 mg/100 g (P. palestina Taskent). The fatty acid composition of the pine stone seeds oil varied between locations. While linoleic acids in the P. pinea oils are found higher than that of the oleic acids, linoleic acid contents of P. terebinthus fruit oils were reported low. Linoleic acid contents of Stone pine (P. pinea Izmir) were established as 48.3% and 45.1%, respectively. Current study exhibited to be a potential source of valuable oil which might be used for edible and other industrial applications.

Matthaus B.,Institute for Lipid Research | Ozcan M.M.,Selcuk University
Asian Journal of Chemistry | Year: 2013

Pine seed (Pinus pinea L.) oil was evaluated for oil content, fatty acid composition, tocopherol and sterol contents. The main identified fatty acids were palmitic acid (4.43 %), oleic acid (18.78 %), linoleic acid (60.39 %) and linolenic acid (6.94 %). The major tocopherols of seed oil was α-tocopherol (5.38 %) and γ-tocopherol (37.46 %). The total tocopherol content had 43.88 mg/100 g. The sterol contents of pine seed oil were established as 68.80 % b-stosterol, 10.66 % campesterol and 15.02 % 5-avenasterol. The total sterol was determined as 5868.39 mg/kg.

Matthaus B.,Institute for Lipid Research | Ozcanb M.M.,Selcuk University
Grasas y Aceites | Year: 2012

The seed oils from seven Turkish and ten Vietnamese varieties of Citrus fruits were examined for their fatty acid composition, tocopherols and sterol contents. The oil contents of the samples varied between 32.1 g/100 g and 58.8 g/100 g. The major fatty acid of the extracted seed oils was oleic (12.8-70.1%), followed by linoleic (19.5-58.8%) and palmitic (5.1-28.3%). Stearic, vaccenic, linolenic and arachidic acids were found at low levels. The total content of vitamin E active compounds in the oils ranged between 0.8 and 21.0 mg/100 g. The predominant isomers were α- and γ-tocopherol, with approximate equal amounts between about 0.4 and 17.5 mg/100 g. The total sterol contents of the oils were found between 1310.54 and 3986.58 mg/kg, with β-sitosterol as the predominant sterol that accounted for more than 70% of the total amount of sterols. Other sterols, campesterol (8.03-15.26%), stigmasterol (2.55-7.69%), Ä5-avenasterol (1.80-5.67%), cholesterol (0.83-2.70%) and chlerosterol (0.93-1.78%) were detected in most of the oils. The results of the present study indicate that the seed oils of Citrus fruits are considered to be a potential oil source due to their fatty acid composition and important tocopherol and sterol, and might be used for edible applications as well as the production of potential value-added products.

Mariod A.,Sudan University of Science and Technology | Matthaus B.,Institute for Lipid Research | Hussein I.H.,University of Gezira
JAOCS, Journal of the American Oil Chemists' Society | Year: 2011

Stripped and non-stripped oils from Sclerocarya birrea [marula oil (SCO)], Aspongopus viduatus [melon bug oil (MBO)] and Agonoscelis pubescens [sorghum bug oil (SBO)], traditionally used for nutritional applications in Sudan, were investigated for their fatty acid and tocopherol composition, and their oxidative stability. Three stripping methods were used, phenolic compounds extraction, silicic acid column, and aluminum oxide column. The stripping methods did not affect the fatty acid composition. Non-stripped SCO, MBO and SBO contained oleic, palmitic, stearic and linoleic acids, which were not significantly (P<0.05) different than stripped SCO, MBO and SBO. The stripping methods' effect on the tocopherol composition of the studied oils, the total amount of tocopherol in non-stripped oils decreased by extraction of phenolic compounds, mean that part of the tocopherols was extracted with the phenolic compounds. No traces of tocopherols were found in oils stripped using silicic and aluminum columns and the tocopherols were eliminated during the stripping processes. The stability of SCO, MBO and SBO oils was 43, 38 and 5.1 h, respectively, this stability decreased by 22.0, 37.6 and 23.5%, respectively after extraction of phenolic compounds. This stability decreased by 96.9, 98.2 and 90.2% respectively, when stripped using the aluminium column and decreased by 92.6, 96.1 and 86.3% when stripped by the silicic column. It is possible to assume that the tocopherols and phenolic compounds play a more active role in the oxidative stability of the oils than the fatty acid composition and phytosterols. © AOCS 2010.

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