Abstract
Mexico is the world’s largest producer, exporter, and consumer of avocados. “Hass” avocado is the most commercialized cultivar, while the native Mexican avocado varieties have been displaced. Thus, studies regarding their chemical and nutraceutical characterization are scarce. We studied the total lipid content, fatty acid profile, carotenoid content, and free radical-scavenging activity of the fruit pulp from 12 accessions of the native Mexican avocado (Persea americana var. drymifolia). The results show that the chemical and nutraceutical characteristics depend on the accession type. The total lipid content ranged from 13.22 to 23.41%. The major saturated fatty acid in all the avocado accessions was palmitic acid (15.54–22.68%). Monounsaturated fatty acids, like oleic (56.58–74.19%), linoleic (5.62–16.85%) and linolenic (0.63–2.85%) acids were the most abundant unsaturated fatty acids in all the native Mexican avocado accessions. The total carotenoid content (1.57 to 7.83 mg eq. of β-carotene 100 g-1 fresh weight) and the free radical-scavenging activity (7.58–88.62 mMol trolox equivalent 100 g−1 fresh weight) also varied significantly (p < 0.05) among accessions. Native Mexican avocados have a great nutraceutical potential due to their high content of omega-9, omega-6, and omega-3 fatty acids and carotenoids. These compounds have been reported to display antioxidant activities and protect against cardiovascular diseases.
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Acknowledgments
Thanks to CONACYT for providing scholarship 429348 to Méndez-Zúñiga. Also to Cátedras-CONACYT for project 397 (Dr Erick P. Gutiérrez-Grijalva).
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Méndez-Zúñiga, S.M., Corrales-García, J.E., Gutiérrez-Grijalva, E.P. et al. Fatty Acid Profile, Total Carotenoids, and Free Radical-Scavenging from the Lipophilic Fractions of 12 Native Mexican Avocado Accessions. Plant Foods Hum Nutr 74, 501–507 (2019). https://doi.org/10.1007/s11130-019-00766-2
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DOI: https://doi.org/10.1007/s11130-019-00766-2