This research shows essential oil impacts on antimicrobial activity and insecticidal effects in Callosobruchus maculatus, indicating its potential as a natural preservative.
Key Points
To evaluate the composition and biological activities of Litsea cubeba essential oil, focusing on antimicrobial and insecticidal effects.
Chemical composition analysis via GC–MS
Antimicrobial activity assessed using disc diffusion and minimum inhibitory concentration tests
In situ tests on various fresh produce
Biofilm suppression measured using the crystal violet method
Insecticidal activity tested in fumigation assays
LCEO showed significant antimicrobial activity, especially against Gram-positive bacteria with inhibition zones up to 15.67 mm for S. aureus.
Minimum inhibitory concentrations revealed strong effects against Y. enterocolitica (0.156 mg/mL) and C. albicans (0.077 mg/mL).
Biofilm formation of S. enterica was effectively suppressed with an MIC₅₀ of 0.33 mg/mL.
Insecticidal assays confirmed complete mortality of C. maculatus adults at ≥ 50% LCEO.