Abstract

ORE ARECHE, Franklin; MUNOZ CCENCHO, Rosmery Verónica; RUIZ RODRIGUEZ, Alfonso  and  CORILLA FLORES, Denis Dante. Antioxidant activity of the functional drink from the stem extract of Oxalis tuberosa Mol. and heat-treated Gaultheria glomerata (Cav.) Sleumer juice. Rev. Inv. Cs. Agro. y Vet. [online]. 2022, vol.6, n.18, pp.545-556.  Epub Dec 15, 2022. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v6i18.190.

Functional foods are found in different consistencies or formulations, basically they can be found in liquid and powder form. The objective of the research was to evaluate the effect of the stem juice of Oxalis tuberosa Mol. "oca" and the juice of the fruit of Gaultheria glomerata (Cav.) Sleumer "laqa-laqa" in the antioxidant capacity of the functional drink. The stems of "oca" and the fruit of "laqa-laqa" were collected to obtain the juice. Three treatments (B1, B2 and B3) were formulated with two repetitions each, with different concentrations of "oca" and "laqa-laqa" juice, to which a sensory evaluation was carried out with 30 semi-trained panelists, in the evaluation It was determined that treatment B2 (300 ml of "oca" stem juice, 800 ml of "laqa-laqa" juice, 1000 ml of treated water and 220 g of refined sugar) obtained a higher score for all its attributes (color , smell, taste and general appearance), which was subjected to a physicochemical evaluation. The results obtained were 89.50 for moisture, 1.38 for protein, 1.08 for fat, 1.82 for ash and 6.22 for carbohydrates, while Total Energy: 40.13 kcal/100 g, Total Polyphenols: 1825.13 mg of gallic acid/100 g and Antioxidant Activity: 89.56% μmol of trolox/100 g. These results show that it is a high-energy drink with good antioxidant activity, which is recommended for consumption by people who are in constant physical activity.

Keywords : Oca; laqa-laqa; Antioxidants; Energy; Polyphenols.

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