Tocopherol, Sterol and Amino Acid Compositions of Trigonella strangulata Boiss. Seeds

Fenugreek (Trigonella foenum-graecum L.) which is known from ancient times is one of the most promising medicinal herbs and having high nutritional value. Fenugreek contains diverse categories of phytoconstituents such as amino acids, fatty acids, phytosterols, phenolics, alkaloids etc. This study aimed at determining the seeds of T. strangulata for their tocopherol, sterol and amino acid compositions by using HPLC, GC, UFLC techniques. The seed oil contains mainly α-tocopherol (188.78±1.18 mg/100 g). Major phytosterols (%) were βsitosterol (56.80±0.74), delta-5-avenasterol (13.82±0.46) and delta-5,24-stigmastadienol (10.53±0.57) while high quantities of glutamic acid, lysine, proline, arginine and leucine were observed in seeds (3086±0.08, 2482±0.07, 2334±0.07, 2244±0.08 and 2053±0.07 mg/100 g, respectively). The results indicate that this species are a source of α-tocopherol, β-sitosterol and amino acids