TY - JOUR
T1 - Characteristics and antioxidant properties of cold pressed high oleic and linoleic oils from Mexican safflower varieties
AU - Lonogoria-Sanchez Athziri
AU - Valdez Morales, Maribel
AU - Oomah B. Dave
AU - Medina-Godoy, Sergio
AU - Ochoa-Espinoza Xochilt M
AU - Góngora-Gómez Andrés M
AU - Espinosa Alonso, Laura Gabriela
N1 - 10.9755/ejfa.2019.v31.i9.1999
PY - 2019/9
Y1 - 2019/9
N2 - 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).
AB - 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).
KW - Antioxidant activity, fatty acids, linoleic, oleic, physicochemical properties
M3 - Artículo
SN - 2079-052X
VL - 31
SP - 679
EP - 687
JO - Emirates Journal of Food and Agriculture
JF - Emirates Journal of Food and Agriculture
IS - 9
M1 - 9
ER -