LARVICIDAL ACTIVITY OF ESSENTIAL OILS FROM Nymphaea lotus LEAVES AGAINST Aedes aegypti MOSQUITO

Authors

  • Bheatriz Nunes de Lima Albuquerque Universidade Federal de Pernambuco
  • Patrícia Cristina Bezerra da Silva Universidade Federal de Pernambuco
  • Daniela Maria do Amaral Ferraz Navarro Universidade Federal de Pernambuco

Keywords:

AEDES AEGYPTI, LARVICIDAL ACTIVITY, NYMPHAEA LOTUS, ESSENTIAL OIL.

Abstract

The Aedes aegypti mosquito concerns global health agencies because the vector is responsible for transmitting the diseases Zika, Dengue, Chikungunya and Yellow Fever. One of the alternatives to prevent these diseases is to control the mosquito vector population. The use of plant-derived extracts and essential oils has been driven by their being biodegradable, generally having no negative effects on non-target organisms and having different modes of action. Essential oils and extracts from Nymphaea spp. (aff. N. caerulea and N. lotus) are known for their use in oriental medicinal practices, especially in India and China. Thus, the objective of this work was to identify the chemical composition of the essential oil of Nymphaea lotus Roxb leaves. ex Andrews and evaluate their larvicidal activity against the A. aegypti mosquito. Plant material was collected in Olinda, at Abolição Square (8 ° 1'4 ”S 34 ° 51'1” W) in Pernambuco. Extraction of the essential oil was performed for 3 hours by hydrodistillation technique. The yield obtained for the essential oil of dehydrated N. lotus leaves was 0.05% (58.8mg). The identification of the essential oil was performed by the mass spectrometry coupled with gas chromatography (GC-MS) technique and it was found that the major constituents were hexadecanoic acid, dolabella-3,7,18-triene and (Z,Z,Z)-9,12,15-octadecatrienoic acid. The essential oil and aqueous extract of N. lotus leaves showed larvicidal activity against the A. aegypti mosquito. The preliminary test result for the essential oil was 100% mortality at 50ppm concentration and for the concentrated aqueous extract it was 70% mortality. Both showed potential as an alternative to combat the spread of the mosquito and consequently the diseases transmitted by it.

Published

2019-10-19

How to Cite

Albuquerque, B. N. de L., Silva, P. C. B. da, & Navarro, D. M. do A. F. (2019). LARVICIDAL ACTIVITY OF ESSENTIAL OILS FROM Nymphaea lotus LEAVES AGAINST Aedes aegypti MOSQUITO. Caderno Verde De Agroecologia E Desenvolvimento Sustentável, 9(5), b–24. Retrieved from https://gvaa.com.br/revista/index.php/CVADS/article/view/7139

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