Mosquito Larvicidal Activity and Cytotoxicity of the Extracts of Aromatic Plants from Malaysia.
Huimei LimSook Yee LeeLai Yee HoNam Weng SitPublished in: Insects (2023)
Despite ongoing control efforts, the mosquito population and diseases vectored by them continue to thrive worldwide, causing major health concerns. There has been growing interest in the use of botanicals as alternatives to insecticides due to their widespread insecticidal properties, biodegradability, and adaptability to ecological conditions. In this study, we investigated the larvicidal activity and cytotoxicity effects of solvent extracts from three aromatic plants- Curcuma longa (turmeric), Ocimum americanum (hoary basil), and Petroselinum crispum (parsley)-against Aedes albopictus . Subsequently, we examined the phytochemical composition of the extracts through gas chromatography-mass spectrometry (GC-MS) analysis. Results revealed that the hexane extracts of O. americanum and P. crispum exhibited the greatest larvicidal activity with the lowest median lethal concentration (LC 50 ) values (<30 µg/mL) at 24 h post-treatment, with the former found to be significantly less toxic towards African monkey kidney (Vero) cells. The GC-MS analysis of the said extract indicated the presence of different classes of metabolites, including phenylpropanoids, very long-chain alkanes, fatty acids and their derivatives, and terpenes, with the most abundant component being methyl eugenol (55.28%), most of which, have been documented for their larvicidal activities. These findings provide valuable insights into the potential use and development of bioinsecticides, particularly from O. americanum .
Keyphrases
- aedes aegypti
- zika virus
- dengue virus
- gas chromatography mass spectrometry
- fatty acid
- healthcare
- induced apoptosis
- human health
- mental health
- ms ms
- oxidative stress
- climate change
- cell cycle arrest
- amino acid
- mass spectrometry
- cell death
- solid phase extraction
- endoplasmic reticulum stress
- liquid chromatography
- health promotion
- data analysis