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VOL. 10, ISSUE 4 (2025)
Antioxidant and antilarvicidal potential of guava (Psidium Guajava) leaf extract: A study on free radical scavenging and brine shrimp toxicity
Authors
Kamali Rajinikanth, Saranya Sampath, Hemapriya Janarthanam, Reshma Girirajan, Vijayanand Selvaraj
Abstract
The leaves of guavas (Psidium guajava) contain
bioactive substances that exhibit strong Antilarvicidal and antioxidant
properties. This study examines the toxicity against brine shrimp and its
antioxidant potential of an aqueous leaf extract of guava. DPPH, FRAP, ABTS,
superoxide free radical neutralization, nitric oxide inhibition, and hydroxyl
oxidative stress reduction tests were among the antioxidant assays conducted on
the extract obtained from dried guava leaves. Strong ability to scavenge free
radicals was demonstrated in the findings, highlighting the Psidium guajava
aqueous extract’s potential to mitigate oxidative stress. Furthermore, the
extract’s Antilarvicidal effect was evaluated using the brine shrimp
cytotoxicity assay. The half-maximal lethal dose (LC₅₀) of Artemia salina nauplii
validated its toxic impact on larvae, with mortality increasing proportionally
with concentration. The findings suggest that guava leaf extract serves as a
valuable reservoir of bioactive molecules and natural antioxidants, with
possible applications in agriculture and the pharmaceutical sector. Its
therapeutic value should be fully explored, and further research should be
conducted to elucidate its mechanism of action.
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Pages:66-71
How to cite this article:
Kamali Rajinikanth, Saranya Sampath, Hemapriya Janarthanam, Reshma Girirajan, Vijayanand Selvaraj "Antioxidant and antilarvicidal potential of guava (Psidium Guajava) leaf extract: A study on free radical scavenging and brine shrimp toxicity". International Journal of Entomology Research, Vol 10, Issue 4, 2025, Pages 66-71
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