Bad Münster am Stein-Ebernburg, Germany
Bad Münster am Stein-Ebernburg, Germany

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Matthaus B.,Institute For For Lipid Research | Ozcan M.M.,Selcuk University
Czech Journal of Food Sciences | Year: 2011

The lipid compositions of the seed oils of some Nigella species were investigated. The total oil content of the seeds ranged from 28.0 to 36.4%. GC-MS fatty acid compositional analysis of the Nigella seed oils revealed the content of linoleic acid to be the highest (40.3-58.9%). Other prominent fatty acids were as follows: oleic (18.7-28.1%), palmitic (10.1-12.5%), 22:1 D11 (3.2-3.8%) and stearic (2.6-3.1%) acids. All the Nigella seed oils analysed exhibited differences in their tocopherol contents and the differences were estimated. The oils extracted from the seeds contained between 1.70-4.12 mg/100 g α-T, 0.97-4.51 mg/100 g γ-T, and 4.90-17.91 mg/100 g β-T3. The total tocopherol content in seeds varied between 9.15 mg/100 g to 24.65 mg/100 g. The compositions of the sterol fractions were determined by gas liquid chromatography. The total amounts of sterols ranged between 1993.07 mg/kg to 2182.17 mg/kg. The main component was β-sitosterol (48.35-51.92%), followed by 5-avenasterol, campesterol, and stigmasterol.


Matthaus B.,Institute For For Lipid Research | Ozcan M.M.,Selcuk University
Botanical Studies | Year: 2014

Background: The aim of current study is to establish the composition of these seeds belong to Rosaceae family with respect to fatty acid, tocopherol and squalene content. Results: The oil contents of seeds varied between 3.49 (Cotoneaster bullatus) to 46.15 g/100 g (Prunus tenella). The main fatty acids of seed oils were oleic (6.50 - 67.11 %), linoleic (22.08 - 68.62 %) and 20:1n-7 (0.10 - 61.59 %). As observed, the oils of seed were rich in linoleic and oleic acids. Total tocopherol contents ranged between 7.06 mg/ 100 g (Prunus tenella) to 165.74 mg/100 g (Potentilla glandulosa ssp. pseudorupestris). The major tocopherols were γ-tocopherol, ranging from 2.08 mg/100 g to 106.01 mg/100 g; α-tocopherol ranging from 2.86 mg100 g to 74.26 mg/100 g and δ-tocopherol ranging used in this experiment were found between 0.02 mg/100 g (Alchemilla caucasica) to o.29 mg/100 g (Cotoneaster simonsii). Conclusions: These results show that Rosaceae seed oils can be a potential saurce of valuable oil which might be useful for the evaluation of dietary information in important food crops and other industrial applications. © 2014 Matthaus and Ozcan; licensee Springer.


Matthaus B.,Institute For For Lipid Research | Ozcan M.M.,Selcuk University
European Journal of Lipid Science and Technology | Year: 2012

The oil yields of hazelnut kernels collected from Germany (Münster) and Turkey range from 8.1 to 64.1%. The main fatty acids in hazelnut kernel oils are oleic (76.3-82.6%), linoleic (6.5-14.0%), and palmitic (5.7-6.5%). The hazelnut kernel oils contained an appreciable amount of α-tocopherol (19.9-63.9mg/100g), with a mean value of 40.02mg/kg, and γ-tocopherol (1.3-15.5mg/100g), with a mean value of 4.84. α-Tocopherol was the predominant tocopherol in all hazelnut kernels. The major sterols were β-sitosterol, ranging from 78.13 to 82.56mg/kg; campesterol, ranging from 4.79 to 7.42mg/kg; and δ5-avanasterol, ranging from 1.26 to 5.24mg/kg. The highest minerals were K and P followed by Ca, Mg, Na, and Zn. P contents of all samples were established between 2029.90 and 4376.66ppm. The results may also be useful for the evaluation of nutritional information. As a result, the present study showed that the kernels of hazelnut are a potential source of valuable oil which might be used for food and non-food applications. In addition, hazelnut kernel oil has a high nutritive value and can be recommended for processing of healthy food products. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Matthaus B.,Institute For For Lipid Research | Ozcan M.M.,Selcuk University
Journal of Food Biochemistry | Year: 2011

The chemical composition and mineral contents of flower bud of tumbleweed (Gundelia tourneforti L.) wild growing in Turkey were studied. The tumble weed flower buds were rich in crude oil, crude protein and crude fiber. At the same time, it proved to be a good source for minerals K, Ca, P, Na, Fe, Mg, Zn. The oil of flower buds were rich in linoleic (57.8%), followed by oleic (28.5%) and palmitic (8.1%). Stearic, vacsenic and arachidic were also found. The total content of sterol of the oil was established as 3,766.60mg/kg, with β-sitosterol as the predominant sterol that accounted for more than 51.76% of the total amount of sterols. Other sterols were established as 18.52% stigmasterol, 9.82% 5-avenasterol, 6.02% campesterol, 3.68% 7-stigmastenol and 2.63% 7-avenasterol. The total content of vitamin E active compounds in the oil was determined as 51.9mg/100g. The predominant isomers were α-tocopherol (48.9mg/100g) and γ-tocopherol (1.0mg/100g). © 2011 Wiley Periodicals, Inc..

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