Abstract:
:Mango (Mangifera indica cv. Ataulfo) peel contains bound phenolics that may be released by alkaline or acid hydrolysis and may be converted into less complex molecules. Free phenolics from mango cv. Ataulfo peel were obtained using a methanolic extraction, and their cellular antioxidant activity (CAA) and permeability were compared to those obtained for bound phenolics released by alkaline or acid hydrolysis. Gallic acid was found as a simple phenolic acid after alkaline hydrolysis along with mangiferin isomers and quercetin as aglycone and glycosides. Only gallic acid, ethyl gallate, mangiferin, and quercetin were identified in the acid fraction. The acid and alkaline fractions showed the highest CAA (60.5% and 51.5%) when tested at 125 µg/mL. The value of the apparent permeability coefficient (Papp) across the Caco-2/HT-29 monolayer of gallic acid from the alkaline fraction was higher (2.61 × 10-6 cm/s) than in the other fractions and similar to that obtained when tested pure (2.48 × 10-6 cm/s). In conclusion, mango peels contain bound phenolic compounds that, after their release, have permeability similar to pure compounds and exert an important CAA. This finding can be applied in the development of nutraceuticals using this important by-product from the mango processing industry.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Pacheco-Ordaz R,Antunes-Ricardo M,Gutiérrez-Uribe JA,González-Aguilar GAdoi
10.3390/ijms19020514subject
Has Abstractpub_date
2018-02-08 00:00:00issue
2issn
1422-0067pii
ijms19020514journal_volume
19pub_type
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