Influence of in vitro gastro-duodenal digestion on the antioxidant activity of single and mixed three “Jarilla” species infusions

CARABAJAL, MONICA P.A.; ISLA, MARIA I.; BORSARELLI, CLAUDIO D.; ZAMPINI, IRIS C.

Journal of Herbal Medicine

Elsevier

Año: 2019 vol. 19

2210-8033

Zuccagnia punctata Cav. (Zp), Larrea cuneifolia Cav. (Lc) and Larrea divaricata Cav. (Ld), are shrubs commonlycalled ?Jarillas? and used in Argentinian local communities as medicinal plants. In this work, phytochemicalprofile and antioxidant activity of infusions prepared from aerial parts and mixtures in different proportions,before and after a simulated gastro-duodenal digestion was determined. The main phytochemical groups, protein,sugar and mineral content were analyzed, whereas some chemical markers were quantified by HPLC-DAD. All infusions exhibited antioxidant activity measured by different mechanisms (total reducing power and free radical scavenging). Although the antioxidant potential was lower after passing through the gastro-duodenal digestion process, in some cases an enhancement or synergism was observed. The mixture infusion prepared from 50% Lc, 25% Ld and 25% Zp showed higher antioxidant power after digestion and bioactive componentrecovery. These beverages could be important sources of antioxidant compounds for the prevention of chronic diseases associated with oxidative stress.