PHYTOCHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF Plectranthus amboinicus EXTRACTS CULTIVATED WITH MAGNETICALLY TREATED WATER
Keywords:
Plectranthus amboinicus; phenols; flavonoids; antioxidant activity; magnetically treated water.Abstract
The physicochemical properties, qualitative phytochemical composition, total phenolic and
flavonoid content and free radical scavenging activity of extracts from the leaves of Plectranthus
amboinicus (Lour.) Spreng grown with magnetically treated water were evaluated. The extracts
from treated plants showed a decrease in pH and an increase in the concentration of total dissolved
solids. Furthermore, qualitatively a similar phytochemical composition was observed with respect
to its controls and a statistically significant increase in phenolic compounds was evident in the
treated extracts, of which the ethanolic compounds had greater antiradical activity. Also, it was
verified by thin layer chromatography that all extracts presented compounds with antioxidant
activity such as quercetin and rosmarinic acid. These results showed that irrigation with
magnetically treated water favored the highest concentration of metabolites related to activity,
which increase its antioxidant potential and constitutes the first report of the species grown under
these conditions.
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Copyright (c) 2025 Javier Enrique Almenares-Rosales, Yanaisy Pérez-Quintero , Cynthia Ramos-Frómeta, Yilan Fung-Boix, Quirino Arias-Cedeño
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