Thaylanna Pinto de Lima, João Pedro Mesquita Oliveira, Gustavo Oliveira Everton

Psidium guajava L. (guava) nanoemulsion larvicide

Development of larvicidal nanoemulsion (O/A) incorporated in the essential oil of Psidium guajava L.

• Broschiertes Buch

Produktbeschreibung

P. guajava leaves and essential oil obtained by hydrodistillation technique were collected. Chemical constituents were evaluated by gas chromatography-mass spectrometry (GC/MS). The total phenolic content was quantified by the Folin-Ciocalteau spectrophotometric method. For the toxicity test, the Artemia salina bioassay was applied. The nanoemulsion (W/A) was prepared using the low energy phase inversion method. The LC50 was calculated for the action of the nanoemulsion against Aedes aegypti larvae by the Probit method. The main chemical constituent found in the essential oil of P. guajava was -pinene 34.25%. Total phenolic compounds were quantified as 210.35 mg EAT g-1. In the toxicity bioassay, the LC50 of 323.6 mg L-1 was classified as non-toxic. The nanoemulsion droplets after 30 days of handling had an average size of 120.41 ± 0.55 nm. The larvicidal activity of the nanoemulsion showed mortality at concentrations of 10 to 100 mg L-1 with an LC50 of 12.75 mg L-1.

Produktdetails

• Verlag: Our Knowledge Publishing
• Seitenzahl: 52
• Erscheinungstermin: 9. Dezember 2021
• Englisch
• Abmessung: 220mm x 150mm x 4mm
• Gewicht: 96g
• ISBN-13: 9786204325903
• ISBN-10: 6204325906
• Artikelnr.: 63116736

Autorenporträt

Licenciada en Química Industrial por la Universidad Federal de Maranhão e Investigadora del Laboratorio de Investigación y Aplicación de Aceites Esenciales (LOEPAV / UFMA). Experiencia en el área de extracción y actividades biológicas de productos naturales con potencial biotecnológico.