Apart from its essential oil, Prunus armeniaca L. kernel extract has received only scarce\nattention. The present study aimed to describe the lipid and polyphenolic composition of the\ndichloromethane, chloroform, ethyl acetate, and ethanol extracts on the basis of hot extraction,\nperforming analysis by gas chromatography and high-performance liquid chromatography coupled\nwith mass spectrometry. A total of 6 diacylglycerols (DAGs) and 18 triacylglycerols (TAGs)\nwere detected as being present in all extracts, with the predominance of OLL (dilinoleyl-olein),\nOOL (dioleoyl-linolein), and OOO (triolein), with percentages ranging from 19.0â??32.8%, 20.3â??23.6%,\nand 12.1â??20.1%, respectively. In further detail, the extraction with ethyl acetate (medium polarity\nsolvent) gave the highest signal for all peaks, followed by chloroform and dichloromethane (more\napolar solvent), while the extraction with ethanol (polar solvent) was the least effcient. Ethanol showed\nvery poor signal for the most saturated TAGs, while dichloromethane showed the lowest percentages\nof DAGs. Accordingly, the screening of the total fatty acid composition revealed the lowest percentage\nof linoleic acid (C18:2n6) in the dichloromethane extract, which instead contained the highest\namount (greater than 60%) of oleic acid (C18:1n9). Polyphenolic compounds with pharmacological\neects (anti-tumor, anti-coagulant, and inflammatory), such as coumarin derivative and amygdalin,\noccurred at a higher amount in ethyl acetate and ethanol extracts.
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