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Abstract Title:

Avocado (Persea americana Mill.) phenolics, in vitro antioxidant and antimicrobial activities, and inhibition of lipid and protein oxidation in porcine patties.

Abstract Source:

J Agric Food Chem. 2011 May 25 ;59(10):5625-35. Epub 2011 Apr 21. PMID: 21480593

Abstract Author(s):

Javier-Germán Rodríguez-Carpena, David Morcuende, María-Jesús Andrade, Petri Kylli, Mario Estévez

Article Affiliation:

Faculty of Veterinary, Autonomous University of Nayarit, Tepic, Mexico.

Abstract:

The first aim of the present work (study 1) was to analyze ethyl acetate, 70% acetone, and 70% methanol extracts of the peel, pulp, and seed from two avocado (Persea americana Mill.) varieties, namely, 'Hass' and 'Fuerte', for their phenolic composition and their in vitro antioxidant activity using the CUPRAC, DPPH, and ABTS assays. Their antimicrobial potential was also studied. Peels and seeds had higher amounts of phenolics and a more intense in vitro antioxidant potential than the pulp. Peels and seeds were rich in catechins, procyanidins, and hydroxycinnamic acids, whereas the pulp was particularly rich in hydroxybenzoic and hydroxycinnamic acids and procyanidins. The total phenolic content and antioxidant potential of avocado phenolics was affected by the extracting solvent and avocado variety. The avocado materials also displayed moderate antimicrobial effects against Gram-positive bacteria. Taking a step forward (study 2), extracts (70% acetone) from avocado peels and seeds were tested as inhibitors of oxidative reactions in meat patties. Avocado extracts protected meat lipids and proteins against oxidation with the effect on lipids being dependent on the avocado variety.

Study Type : In Vitro Study

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Depression: 21st Century Solutions + The Dark Side of Wheat

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