Determination of polyphenol contents and antioxidant capacity of no-alcoholic red grape products (vitis labrusca) from conventional and organic crops

AUTOR(ES)

Machado, Michel Mansur, Montagner, Greice Franciele Feyh dos Santos, Boligon, Aline, Athayde, Margareth Linde, Rocha, Maria Izabel Ugalde Marques da, Lera, Juan Pablo Barrio, Belló, Caroline, Cruz, Ivana Beatrice Mânica da

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2011

RESUMO

The polyphenol contents and antioxidant capacity of Brazilian red grape juices and wine vinegars were analyzed. Additionally, it was analyzed the human polyphenol absorption and acute effect in plasmatic oxidative metabolism biomarkers after juice ingestion. The organic Bordo grape juice (GBO) presented a higher level of trans-resveratrol, quercitin, rutin, gallic acid, caffeic acid and total flavonoids then other juices and vinegars as well as antioxidant capacity. The plasmatic polyphenol increased 27.2% after GBO juice ingestion. The results showed that juices and vinegars from Brazilian crops present similar chemical and functional properties described in studies performed in other countries.

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