Native oils from apple,blackcurrant,raspberry,and strawberry seeds as a source of polyenoic fatty acids,tocochromanols,and phytosterols: A health implication

The oils from strawberry,blackcurrant,raspberry,and apple seeds were characterized by a high content of unsaturated fatty acids (90.8%,88.6%,94.0%,and 86.9%,resp.). strawberry and raspberry oils had high levels of c18:2 (45.4% and 49.0%) and c18:3 (29.0% and 33.0%,resp.). blackcurrant oil was the richest source of γc18:3 (18.5%) and c18:4 (3.6%). apple oil had high levels of c18:2 (55.5%) and c18:1 (29.4%). blackcurrant oil had 229.5 mg/100 g of tocochromanols,predominantly γ-tocopherol (117.8 mg/100 g) and -tocopherol (84.3 mg/100 g). raspberry oil was rich in γ-,-,and δ-tocopherol (193.5; 65.6; and 32.2 mg/100 g,resp.). strawberry oil contained γ- and δ-tocopherol,49.0 and 6.1 mg/100 g,respectively. apple contained all isomers of -,β-,γ-,and δ-tocopherols at 41.7,62.7,13.6,and 21.8 mg/100 g,respectively. the level of tocotrienols in the analysed oils ranged from 0.85 to 6.73 mg/100 g. ten different phytosterols were found in the tested oils. the richest sources of phytosterols were blackcurrant oil (6824.9 g/g) followed by raspberry (5384.1 g/g),strawberry (4643.1 g/g),and apple oil (3460.0 g/g). the dominant compound in the analysed oils was sitosterol,from 2630 g/g in apple oil to 3630 g/g in blackcurrant oil. © 2015 marek pieszka et al.