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Biotecnia
versión On-line ISSN 1665-1456
Resumen
CORONA LEO, Lizbeth Sandra; HERNANDEZ-MARTINEZ, Diana Maylet y MEZA-MARQUEZ, Ofelia Gabriela. Analysis of physicochemical parameters, phenolic compounds and antioxidant capacity of peel, pulp and whole fruit of five apple varieties (Malus domestica) harvested in Mexico. Biotecnia [online]. 2020, vol.22, n.1, pp.166-174. Epub 03-Ago-2020. ISSN 1665-1456. https://doi.org/10.18633/biotecnia.v22i1.1193.
Apples are a source of polyphenolic compounds with antioxidant properties that have protective effects on human health. The objective of this work was to determine total soluble solids (SST), total acidity (AT), pH, total phenolic compounds (CFT), total flavonoid content (CTF), total anthocyanin content (CTA) and antioxidant capacity (ABTS and DPPH) of five apple varieties harvested in Mexico. Results indicate that CFT, CTF, CTA, ABTS and DPPH are distributed in the following order: peel, whole fruit, pulp. In the Golden delicious variety and in the pulp of all apple varieties no anthocyanins were detected. The ACP indicates that SST and AT are associated with pulp and whole fruit, while CFT, CTF, CTA, ABTS and DPPH are associated with the peel of the fruit. The CFT and CTA showed a positive correlation (r: 0.72-0.83) with the DPPH method in peel, while the ABTS assay had a positive correlation (r: 0.75-0.89) with CFT and CTF in peel. The SST, AT, pH, CFT, CTF, CTA, ABTS and DPPH vary depending on the cultivar, geographic region and part of the fruit.
Palabras llave : Malus domestica; phenolic compounds; flavonoids; anthocyanins; antioxidant capacity.