Antioxidant capacity, total phenolic content and phenolic compounds of pulp and bagasse of four Peruvian berries

Elizabeth Rojas-Ocampo; Llisela Torrejón-Valqui; Lucas D Muñóz-Astecker; Marleni Medina-Mendoza; Diner Mori-Mestanza; Efraín M Castro-Alayo

doi:10.1016/j.heliyon.2021.e07787

Antioxidant capacity, total phenolic content and phenolic compounds of pulp and bagasse of four Peruvian berries

Heliyon. 2021 Aug 13;7(8):e07787. doi: 10.1016/j.heliyon.2021.e07787. eCollection 2021 Aug.

Authors

Elizabeth Rojas-Ocampo¹, Llisela Torrejón-Valqui², Lucas D Muñóz-Astecker², Marleni Medina-Mendoza², Diner Mori-Mestanza², Efraín M Castro-Alayo²

Affiliations

¹ Programa Académico de Ingeniería Agroindustrial, Facultad de Ingeniería y Ciencias Agrarias, Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Calle Higos Urco N° 342-350-356, Chachapoyas, Amazonas, Peru.
² Instituto de Investigación, Innovación y Desarrollo para el Sector Agrario y Agroindustrial de la región Amazonas (IIDAA), Facultad de Ingeniería y Ciencias Agrarias, Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Calle Higos Urco N° 342-350-356, Chachapoyas, Amazonas, Peru.

Abstract

Revaluing agri-food waste to offer consumers bioactive compounds for a healthy diet is an important issue. In the present work, the antioxidant capacity (AC), total phenolic content (TPC) and phenolic compounds of pulp and bagasse of four Peruvian berries with UHPLC-DAD was determined. Elderberry (Sambucus peruviana Kunth) bagasse had a greater amount of TPC (4.87 ± 0.02 mg GAE/100 gfw) and AC (7.66 ± 0.04 and 7.51 ± 0.24 μmol TE/gfw in DPPH and ABTS, respectively) than the bagasse of the other berries, with a strong positive correlation between TPC and AC. Blueberry (Vaccinium floribundum Kunth) bagasse contains the highest amount of gallic acid (103.26 ± 1.59 μg/gfw), chlorogenic acid (1276.55 ± 1.86 μg/gfw), caffeic acid (144.46 ± 1.78 μg/gfw), epicatechin (1113.88 ± 1.82 μg/gfw) and p-coumaric acid (77.82 ± 1.92 μg/gfw). Elderberry (Sambucus peruviana Kunth) bagasse contains the highest amount of catechin (153.32 ± 0.79 μg/gfw). No significant differences were found in the content of chlorogenic acid and epicatechin of blackberry (Rubus roseus Poir). It was shown that the wastes of the four Amazonian berries have higher values of bioactive properties than their pulp, being the elderberry bagasse the one with the best properties.

Keywords: Antioxidant capacity; Berry bagasse; Chlorogenic acid; Epicatechin; Total phenolic content.