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Lipid profile and antioxidant activity of macadamia nuts (Macadamia integrifolia) cultivated in Venezuela

Rengel A., Perez E., Piombo G., Ricci J., Servent A., Tapia M.S., Gibert O., Montet D.. 2015. Natural Science, 7 (12) : p. 535-547.

Macadamia nuts (Macadamia integrifolia) grown in Venezuela have showed an average total fat content of 70%. Oleic acid (18:1) was the main monounsaturated fatty acid (MUFA) (51.3%), followed by palmitoleic acid (16:1, 22.6%). The content of polyunsaturated fatty acids (PUFAs), C18:2 and C18:3 represented 5.4%. Thus, MUFAs and PUFAs together constituted more than 80% of the total fatty acids present. Trans-vaccenic acid was also present (3%). As regards to other phytochemical compounds, tocopherols and tocotrienols were not found in the sample, but the presence of squalene was detected. The antioxidant activity (44.2%) of the extract was produced by the phytochemicals present. (Résumé d'auteur)

Mots-clés : macadamia ternifolia; venezuela (république bolivarienne du)

Thématique : Composition des produits alimentaires; Physiologie et biochimie végétales

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