Bioavailability of polyphenols and antioxidant capacity of argan oil is analyzed and compared with olive oil. Large proportions of polyphenols from argan oil are absorbed by intestinal cells.
Argan oil is becoming increasingly popular in the edible-oil market as a luxury food with healthy properties. The study of the Spanish National Research Council analyzes the bioavailability of the polyphenol content and antioxidant properties of extra virgin argan oil (EVA) by the combination of in vitro digestion and absorption across Caco-2 cells and the protective role of the oil bioaccessible fraction (BF) against induced oxidative stress. Results were compared with those obtained with extra virgin olive oil (EVO).
Higher values of polyphenols and antioxidant activity were observed in the BF obtained after the in vitro digestion of oils compared with the initial chemical extracts; the increase was higher for EVA but absolute BF values were lower than EVO. Bioaccessible polyphenols from EVA were absorbed by Caco-2 cells in higher proportions than from EVO, and minor differences were observed for antioxidant activity. Preincubation of cell cultures with BF from both oils significantly protected against oxidation, limiting cell damage and reducing reactive oxygen species generation.
Isabel Seiquer, Ascensión Rueda, Manuel Olalla, Carmen Cabrera-Vique, Assessing the bioavailability of polyphenols and antioxidant properties of extra virgin argan oil by simulated digestion and Caco-2 cell assays. Comparative study with extra virgin olive oil, Food Chemistry, Volume 188, 1 December 2015, Pages 496-503, ISSN 0308-8146.
Argan oil is a plant oil produced from the kernels of the argan tree (Argania spinosa L.) that is endemic to Morocco. In Morocco, argan oil is used to dip bread in at breakfast or to drizzle on couscous or pasta. World-wide, it is gaining a reputation both as an ingredient in high-end, personal-care products and as a heart-healthy gourmet product.
Article sourceArgan and olive oils protect in a similar way, but olive oil more,