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Updated: Jan 14, 2026
Author Spotlight: Eco-Friendly Extraction of Bioactive Compounds Using Polyol-Based Microwave-Assisted Techniques
Published on: August 23, 2024
Comparative evaluation of bioactive compounds and antioxidant activity in Justicia spicigera extracts using
Alejandra Cristina Corona-Pérez1, Maria Fernanda Vargas-Torrico2, Miguel Angel Aguilar-Méndez1
1Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada - Unidad Legaria, Instituto Politécnico Nacional, Calzada Legaria 694, Colonia Irrigación, C.P. 11500 Ciudad de Mexico, México.
Abstract:
A comparative study of ultrasound-assisted extraction (UAE) was conducted, and for the first time, microwave-assisted extraction (MAE) was reported for the recovery of bioactive compounds from Justicia spicigera. Among the compounds identified in MAE were kaempferol and peonidin derivatives. In contrast, the extracts obtained via UAE contained cyanidin and kaempferol derivatives. These compounds were associated with the colorimetric changes observed as a function of pH. The results demonstrated that MAE achieved a higher recovery of phenolic compounds (48.93 mg GAE/g of dry extract) and total flavonoids (23.46 mg catechin/g of dry extract). Regarding antioxidant activity, MAE exhibited an IC50 of 124.47 μg of dry extract/mL in the DPPH assay, with no significant differences compared to ABTS and FRAP assays when compared to UAE. This study underscores the role of both extraction technologies in the recovery of bioactive compounds from Justicia spicigera and the potential development of active and intelligent packaging.
