Vino, Udappusamy and Rajan, Thinagaran (2022) Lantana camara L. essential oil mediated nano‑emulsion formulation for biocontrol application: anti‑mosquitocidal, anti‑microbial and antioxidant assay. Archives of Microbiology (2022) 204:388, 388. pp. 1-11.

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Abstract

Mosquitoes play an important role in the spread of vector-borne diseases and their management is highly essential. Plant
extracts have been explored for their mosquitocidal activity against diferent types of vectors. The present work aimed to
determine the larvicidal and pupicidal activity of Lantana camara L. essential oil-loaded nano-emulsion formulation for the
control of pests. The synthesized essential oil-loaded nano-emulsion was subjected to evaluate the antioxidant potential and
mosquito larvicidal properties. GC–MS analysis revealed that the essential oil of Lantana camara L. leaf contained 12 bioactive components. Caryophyllene oxide (15.81), n-Hexadecanoic acid (4.22), Davanone (6.49) and beta-Sesquiphellandrene
(2.32) are the major compounds identifed. The nano-emulsion was efective against A. aegypti immature stage (larvae and
pupae) and adult mosquitoes in laboratory conditions. The LC50 was found to be 18.183 ppm (I), 23.337 ppm (II), 29.731 ppm
(III), 38.943 ppm (IV) instars and 45.295 ppm (pupae), respectively. The LD50 and LD90 values for adult mosquitoes were
11.947 mg/cm2
and 47.716 mg/cm2
, respectively. The antioxidant activity of ascorbic acid (55.9%), glutathione (67.7%)
and quercetin (48.6%) was recorded, respectively. The level of acetylcholinesterase (0.06 mM) and alkaline phosphatase
(0.05 mM) activity signifcantly decreased from the control (0.12 mM) which revealed the efcacy of essential oil-loaded
nano-emulsion to treat larvae. This study suggested that using an essential oil-loaded nano-emulsion formulation efectively
controlled the mosquito vectors. It was also evidenced that the use of nano-emulsion has a great role in near future, especially
in vector management.

Item Type: Article
Uncontrolled Keywords: Lantana camara L. · Essential oil · Nanoemulsion · Anti-mosquitocidal, antioxidant
Depositing User: Mr Team Mosys
Date Deposited: 16 Mar 2023 08:45
Last Modified: 16 Mar 2023 08:45
URI: http://ir.psgcas.ac.in/id/eprint/1792

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