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

  • Athziri Longoria-Sanchez Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Departamento de Biotecnología Agrícola, Alimentos Funcionales, Blvd Juan de Dios Bátiz Paredes 250, Col. San Joachín, Guasave, Sinaloa, México
  • Maribel Valdez Morales CONACyT-Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Departamento de Biotecnología Agrícola, Área de Metabolómica Agrícola, Blvd Juan de Dios Bátiz Paredes 250, Col. San Joachín, Guasave, Sinaloa, México
  • B. Dave Oomah (Retired), Formerly with Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, British Columbia, V0H 1Z0, Canada
  • Xochilt M. Ochoa-Espinoza Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Oleaginous Program at Centro de Investigación Regional del Noroeste, Campo Experimental Norman E. Borlaug, Sonora, México
  • Andrés M. Góngora-Gómez Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Departamento de Acuacultura, Laboratorio de Malacología, Blvd Juan de Dios Bátiz Paredes 250, Col. San Joachín, Guasave, Sinaloa, México
  • L. Gabriela Espinosa-Alonso Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Departamento de Biotecnología Agrícola, Alimentos Funcionales, Blvd Juan de Dios Bátiz Paredes 250, Col. San Joachín, Guasave, Sinaloa, México

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).

Keywords: antioxidant activity, fatty acids, linoleic, oleic, physicochemical properties
Statistics
84 Views | 90 Downloads
How to Cite
Longoria-Sanchez, A., M. V. Morales, B. D. Oomah, X. M. Ochoa-Espinoza, A. M. Góngora-Gómez, and L. G. Espinosa-Alonso. “Characteristics and Antioxidant Properties of Cold Pressed High Oleic and Linoleic Oils from Mexican Safflower Varieties”. Emirates Journal of Food and Agriculture, Vol. 31, no. 9, Sept. 2019, pp. 679-87, doi:https://doi.org/10.9755/ejfa.2019.v31.i9.1999. Accessed 2 Aug. 2021.
Section
Research Article