Antigenotoxic Potential of Dayak Onion Bulb and Leaf (Eleutherine bulbosa Urb.) Ethanol Extract with Allium cepa Assay

Dayak onion (Eleutherine bulbosa Urb.) has the potential as an antigenotoxic agent capable of counteracting the effects of damage to DNA due to ROS (Reactive Oxygen Species). The bioactive compounds in Dayak onions have antiradical scavenging activity that plays a role in counteracting free radicals so that they can improve the genotoxicity that occurs. The purpose of this study was to determine the antigenotoxic potential of the ethanol extract of Dayak onion bulb and Dayak onion leaf using the Allium cepa assay. This study used a completely randomized design with various treatments of extract concentration (0.5, 1, 5, and 10 ppm) after immersion of 3% hydrogen peroxide (H2O2) with 3 replications. Chromosome observations of shallot (Allium cepa L.) roots were carried out between 09.00-10.00 am and then the mitotic index and percentage of inhibition were determined. Data were analyzed descriptively qualitatively, quantitatively, and through the ANOVA test followed by the 5% DMRT test. The ethanolic extract of 10 ppm Dayak onion bulb showed the highest antigenotoxic activity with a mitotic index reaching 6.78% and an inhibition percentage of 92.25%. The antigenotoxic activity of the ethanolic extract of Dayak onion bulb was higher than the ethanolic extract of Dayak onion leaf. These results are related to the antiradical scavenging activity of the ethanolic extract of Dayak onion bulb which is also higher than the ethanolic extract of Dayak onion leaf.