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Characterization of fenugreek (Trigonella foenum-graecum) seed lipids

Ciftci, O.N., Przybylski, R., Rudzinska, M., Acharya, S. (2011). Characterization of fenugreek (Trigonella foenum-graecum) seed lipids, 88(10), 1603-1610.


The composition and content of lipids, fatty acids, triacylglycerols, tocopherols and sterols in nine fenugreek genotypes were analyzed. Lipid content in fenugreek seeds ranged from 5.8 to 15.2%. Major fatty acids were: linoleic acid (45.1-47.5%), α-linolenic (18.3-22.8%), oleic (12.4-17.0%), palmitic (9.8-11.2%) and stearic (3.8-4.2%) acids. The ratios of n-6 to n-3 fatty acids were between 2.1 and 2.7. Similar fatty acid distribution was observed in all analyzed samples with some deviations. α-Tocopherol was the predominant component found in the fenugreek lipid antioxidants, and it constituted over 84% of the total amounts of tocopherols. It amounts ranged from 620 to 910 mg/kg lipids. β-Sitosterol was the major sterol in all samples, varying from 14,203 to 18,833 mg/kg of lipids. Campesterol and cycloartenol were other major sterols, and these compounds including β-sitosterol constituted 56-72% of all sterols. Fenugreek seed lipids consisted predominantly triunsaturated (56.9-66.5%) and diunsaturated (32.2-41.6%) triacylglycerides. Among these components trilinolein (LLL; 12.9-20.5%) dominated followed by PLL (14.0-20.4%), LnLnO (7.8-17.7%), PLO (5.7-11.6%), OLL (6.9-10.6%), LLLn (3.2-9.6%), and LnLnL (3.5-7.6%). Results of the study show that fenugreek seed lipids may be a source of a nutraceutical ingredient for food applications. © 2011 AOCS.

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