High tocopherol and triacylglycerol contents in Pinuspinea L. seeds

Abstract

Oleaginous seeds are among the functional foods most recognized for their tocopherols and triacylglycerols because of their role in lipid metabolism. In this paper, the tocopherol and triacylglycerol contents in seeds of several Pinus pinea L. populations around the Mediterranean Basin were investigated. Lipids were extracted from fully ripen seeds with petroleum ether. The tocopherol (α-tocopherol, γ-tocopherol, and δ-tocopherol) contents were, respectively, 15.34±3.75 ppm, 1,681.75±404.03 ppm and 41.87±9.79 ppm. Lipids (mainly triacylglycerols) in P. pinea seeds averaged 48% on a dry weight basis. Triacylglycerols with an equivalent carbon number of 44 (32.27%) and of 46 (30.91%) were dominant. The major triacylglycerol was LLO (24.06%). Tocopherols and triacylglycerols were present at remarkably high levels, thus making P. pinea oil a valuable source of antioxidants and unsaturated fatty acids with varying levels across the geographical range of P. pinea.

• Mediterranean stone pine
• seeds
• triacylglycerols
• tocopherols
• Mediterranean diet