RT Journal Article T1 Dwarf kiwi (Actinidia arguta Miq.), a source of antioxidants for a healthy and sustainable diet A1 García Herrera, Patricia A1 Maieves, Helayne A. A1 Niño-Vega, Erika A1 Pérez Rodríguez, María Luisa A1 Fernández Ruiz, Virginia A1 Iriondo De Hond, Amaia A1 Del Castillo, María Dolores A1 Sánchez Mata, María De Cortes AB The feasibility of using dwarf kiwi fruits (Actinia arguta Miq.) as a healthy and sustainable food, compared to other types of commercial kiwi fruits, was evaluated in the present study. The overall antioxidant capacity of these fruits was assessed by either extraction-dependent methods (ABTS, ORAC) or the direct method called Quick, Easy, New, CHEap, Reproducible (QUENCHER) (DPPH, FRAP, Folin–Ciocalteu), applied for the first time to analyze kiwi fruits. With this methodology, all the molecules with antioxidant capacity are measured together in a single step, even those with high molecular weight or poor solubility in aqueous extraction systems, such as antioxidant dietary fiber. The effect of kiwi extracts on physiological and induced intracellular reactive oxygen species (ROS) production on IEC-6 cells was also analyzed, as well as total phenolic content (TPC) by Fast Blue BB, flavonols, hydroxycinnamic acids, and hydroxybenzoic acids. A. arguta fruits showed the highest values in all the antioxidant assays, being remarkably higher than the other kiwi species for Q-FRAP and Q-DPPH. Dwarf kiwi showed the highest potential in reducing physiological ROS and the highest values of TPC (54.57 mgGAE/g), being hydroxybenzoic acids the main phenolic family found (2.40 mgGAE/g). Therefore, dwarf kiwi fruits are a natural source of antioxidants compared to conventional kiwi fruits, being a sustainable and healthy alternative to diversify fruits in the diet. PB MDPI SN 1420-3049 YR 2022 FD 2022-08-26 LK https://hdl.handle.net/20.500.14352/92682 UL https://hdl.handle.net/20.500.14352/92682 LA eng NO Garcia-Herrera P, Maieves HA, Vega EN, Perez-Rodriguez ML, Fernandez-Ruiz V, Iriondo-DeHond A, et al. Dwarf Kiwi (Actinidia arguta Miq.), a Source of Antioxidants for a Healthy and Sustainable Diet. Molecules 2022;27:5495. https://doi.org/10.3390/molecules27175495. NO ALIMNOVA UCM Research Group 951505 NO OTRI-UCM-Fundación Sabor y Salud NO Ministerio de Ciencia e Innovación DS Docta Complutense RD 7 abr 2025