a Latvia State Institute of Fruit-Growing, Graudu Str. 1, Dobele, Latvia
b Institute of Food Technology of Plant Origin, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, Poznań,
b Institute of Food Technology of Plant Origin, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, Poznań,
Abstract
Lipophilic bioactive compounds in kernel oils recovered from fruit pits of six sour cherry (Prunus cerasus L.) cultivars were studied. Oil yields ranged between 17.5-37.1%, with an average of 31.8%. The main fatty acids were linoleic (35.50-46.06%), oleic (25.25-45.30%), α-eleostearic (7.43-15.76%) and palmitic (5.06-7.38%), containing 94-96% of total detected fatty acids. The range of total tocochromanols was between 118.2 and 163.6. mg/100. g of oil. Independent of the cultivar, γ-T was the main tocochromanol and constituted between 61 and 83% of the total identified tocopherol and tocotrienol homologues in all studied samples. The total content of the carotenoids was between 0.51-1.75. mg/100. g of oil. The concentration of squalene in different sour cherry kernel oils was reached between 65.8-102.8. mg/100. g of oil. The concentration of sterols varied significantly for all of the studied cultivars and ranged between 313.6-1041.3. mg/100. g of oil. The β-sitosterol constituted 77-82% of the total sterol content detected in the samples studied. Two significant correlations were found between oil yield and the total content of sterols (r= -0.974, p≤. 0.001) and carotenoids (r= -0.915, p≤. 0.01) in sour cherry kernel oils. © 2015 Elsevier B.V.
Author keywords
Carotenoids; Fatty acids; Phytosterols; Prunus cerasus L.; Sour cherry kernel oil; Tocopherols
Indexed keywords
Engineering controlled terms: Alcohols; Linoleic acid; Lipids; Palmitic acid; Pigments; Plants (botany)
Carotenoids; Phytosterols; Prunus cerasus; Sour cherry; Tocopherols
Engineering main heading: Fatty acids
Species Index: Prunus cerasus
