20.500.12556/RUL-135630 Tilia sp. seed oil—composition, antioxidant activity and potential use Research on new, untapped seed oil sources is receiving increased attention. In this study, 18 different seed samples of Tilia cordata and Tilia platyphyllos from various locations in Slovenia were collected and oil was extracted. The compositions of triglyceride fatty acids and unsaponifiable compounds were determined using GC-MS, while antioxidant activity was evaluated using the DPPH method. The oil content in the seeds varied significantly, from 9.1% to 21.7%. Linoleic acid (50–60%) was found to be the predominant fatty acid, followed by oleic acid (18–22%) and palmitic acid (8–9%). Characteristic cyclopropene fatty acids (sterculic, dihydrosterculic and malvalic acids) were present in the average range of 4–8.4%. Antioxidant activity ranged from 8.9% to 65.5%, and was higher, on average, for T. platyphyllos. Higher antioxidant activity was closely correlated with higher γ-tocopherol contents. Statistically significant correlations were confirmed between antioxidant activity and γ-tocopherol, between ∆-tocopherol and phytol, between stigmasterol and β-sitosterol and between squalene and malvalic acid. Tilia oil may be of great interest for cosmetic and dermal preparations. It is, however, not considered a good source of dietary fatty acids due to the undesired, significant content of omega-6 fatty acids. vegetable oil fatty acids unsaponifiables antioxidant activity Tilia sp. rod lip maščobne kisline antioksidativno delovanje rastlinsko olje lipa (drevo) rastlinsko olje true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-22 14:51:06 2022-03-22 14:51:10 2022-09-14 04:14:21 0000-00-00 00:00:00 2021 0 0 10 str. iss. 11, art. 4932 Vol. 11 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 582.685.24:664.34 2076-3417 10.3390/app11114932 80877315 RAZ_Poljsak_Nina_2021.pdf RAZ_Poljsak_Nina_2021.pdf 1 8737C97F2FFEF4E284A122A007ADA90F ebd7baafab420e9500151ea76b0a02f1c2c5eb423f70b724c3858371c289a5a0 ce8c62fc-a9e7-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154826 https://www.mdpi.com/2076-3417/11/11/4932 1 20ee4d47-a9e7-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154825 Fakulteta za farmacijo 0 0 0