Identificación de los compuestos bioactivos de la teatina (Scoparia dulces) procedente del Centro de Investigación  y Transferencia Tecnológica Los Pinos

Jhon Michael Cedeño Veliz; Wagner Antonio  Gorozabel Muñoz

doi:10.12873/454cedeno

Authors

Jhon Michael Cedeño Veliz Facultad de Agrociencias de la Universidad Técnica de Manabí https://orcid.org/0009-0005-5236-832X
Wagner Antonio Gorozabel Muñoz Universidad Técnica de Manabí

DOI:

https://doi.org/10.12873/454cedeno

Keywords:

antioxidants, antimicrobials, agroindustry.

Abstract

Introduction:
Scoparia dulcis (Tiatina) is a medicinal plant with antioxidant, antimicrobial, and anti-inflammatory properties, whose scientific study supports therapeutic and agro-industrial applications. This research evaluated the antioxidant and antimicrobial potential of leaf and stem extracts collected at the Centro de Investigación y Transferencia Tecnológica (CITT) Los Pinos, using chromatographic and spectroscopic techniques.

Objectives:
To characterize the bioactive compounds of S. dulcis, determine its antioxidant and antimicrobial properties, and evaluate its activity against Escherichia coli and Staphylococcus aureus.

Materials and Methods:
Total phenols, flavonoids, and antioxidant capacity (ABTS and DPPH) were analyzed using one-way ANOVA, considering the plant part as the independent variable. Antimicrobial activity was assessed with a three-way factorial ANOVA, including plant part, bacterial strain, and extract concentration (25, 50, and 100%).

Results:
Leaves showed significantly higher concentrations of phenols and flavonoids, resulting in superior antioxidant capacity compared to stems. Regarding antimicrobial activity, leaf extracts produced larger inhibition zones, with S. aureus being more sensitive than E. coli, and showing a dose-dependent effect. Correlation analysis indicated positive associations between phenols, flavonoids, and antioxidant activity, whereas antimicrobial action appeared to depend on additional secondary metabolites.

Conclusions:
Leaves of Scoparia dulcis contained higher levels of phenolic and flavonoid compounds, which correlated with greater antioxidant capacity and more effective antimicrobial activity, particularly against Staphylococcus aureus. These findings highlight the potential of S. dulcis as a source of bioactive metabolites with promising applications in health and industry.

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