Abstract: The proximate composition of seeds and main physicochemical properties and thermal stability of oil extracted from Lannea microcarpa seeds were evaluated. The percentage composition of the seeds was: ash (3.11%), crude oil (64.90%), protein (21.14%), total carbohydrate (10.85%) and moisture (3.24%). Physicochemical properties of the oil were: refractive index, 1.473; melting point, 22.60°C; saponification value, 194.23 mg of KOH/g of oil; iodine value, 61.33 g of I2/100 g of oil; acid value, 1.21 mg of KOH/g of oil; peroxide value, 1.48 meq of O2/kg of oil and oxidative stability index, 43.20 h. Oleic (43.45%), palmitic (34.45%), linoleic (11.20%) and stearic (8.35%) acids were the most dominant fatty acids. Triacylglycerols with equivalent carbon number (ECN) 48 and ECN 46 were dominant (46.96% and 37.31%, respectively). The major triacylglycerol constituents were palmitoyl diolein (POO) (21.23%), followed by dipalmitoyl olein (POP) (16.47%), palmitoyl linoleyl olein (PLO) (12.03%), dipalmitoyl linolein (PLP) (10.85%) and dioleoyl linolein (LOO) (9.30%). The total polyphenol and tocopherol contents were 1.39 mg GAE g−1 DW and 578.56 ppm, respectively. γ-Tocopherol was the major tocopherol (437.23 ppm). These analytical results indicated that the L. microcarpa seed oil could be used as a frying oil and in the cosmetic industry.
Keywords: Lannea microcarpa; seed oil; oxidative stability; fatty acids; triacylglycerols; phenolic compounds
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Bazongo, P.; Bassolé, I.H.N.; Nielsen, S.; Hilou, A.; Dicko, M.H.; Shukla, V.K.S. Characteristics, Composition and Oxidative Stability of Lannea microcarpa Seed and Seed Oil. Molecules 2014, 19, 2684-2693.
Bazongo P, Bassolé IHN, Nielsen S, Hilou A, Dicko MH, Shukla VKS. Characteristics, Composition and Oxidative Stability of Lannea microcarpa Seed and Seed Oil. Molecules. 2014; 19(2):2684-2693.
Bazongo, Patrice; Bassolé, Imaël H.N.; Nielsen, Søren; Hilou, Adama; Dicko, Mamoudou H.; Shukla, Vijai K.S. 2014. "Characteristics, Composition and Oxidative Stability of Lannea microcarpa Seed and Seed Oil." Molecules 19, no. 2: 2684-2693.