Characteristics and antioxidant properties of cold pressed high oleic and linoleic oils from Mexican safflower varieties

Lonogoria-Sanchez Athziri, Oomah B. Dave, Ochoa-Espinoza Xochilt M, Góngora-Gómez Andrés M

Research output: Contribution to journalArticlepeer-review

Abstract

Six cold press oil extracted from high oleic and linoleic Mexican safflower varieties resistant/tolerant to Ramularia carthami were evaluated for their composition, physicochemical characteristics and antioxidant activity. High oleic varieties were rich in oleic (65-78%), linoleic (9-15%), palmitic (2-5%) and stearic (3-5%) acids, whereas high linoleic oils contained 76-79% linoleic, 6-9% oleic, palmitic 6-10% and 3-5% stearic acids. Calculated oxidative stability was highly associated with monounsaturated fatty acid content. High linoleate safflower oils had significantly (p < 0.05) higher b*, ∆E, absorbance (K232 and K272), conjugated diene, triene, peroxide and totox values, total phenolics and ORAC antioxidant activity than high oleate oils. Oil characteristics were strongly correlated with their fatty acid profile, particularly the monounsaturated/polyunsaturated ratio. Total phenolic content was moderately associated with the antioxidant activities of safflower oils (r = 0.714 and 0.540, p < 0.001 for DPPH and ORAC, respectively).
Original languageEnglish
Article number9
Pages (from-to)679-687
Number of pages9
JournalEmirates Journal of Food and Agriculture
Volume31
Issue number9
StatePublished - Sep 2019

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