Artigo Acesso aberto Produção Nacional Revisado por pares

Carvacrol and linalool co-loaded in β-cyclodextrin-grafted chitosan nanoparticles as sustainable biopesticide aiming pest control

2018; Nature Portfolio; Volume: 8; Issue: 1 Linguagem: Inglês

10.1038/s41598-018-26043-x

ISSN

2045-2322

Autores

Estefânia Vangelie Ramos Campos, Patrícia L. F. Proença, Jhones Luiz de Oliveira, Anderson do Espírito Santo Pereira, Lígia Nunes de Morais Ribeiro, Fabrício Oliveira Fernandes, Kelly Cristina Gonçalves, Ricardo Antônio Polanczyk, Tatiane Pasquoto-Stigliani, Renata de Lima, Cirano Cruz Melville, Jaqueline Franciosi Della Vechia, Daniel Júnior de Andrade, Leonardo Fernandes Fraceto,

Tópico(s)

Insect and Pesticide Research

Resumo

Pesticides are the main tactics for pest control because they reduce the pest population very fast and their efficiency does not depend on abiotic factors. However, the indiscriminate use of these substances can speed up the development of resistant populations and causing environmental contamination. Therefore, alternative methods of pest control are sought, such as the use of botanical compounds. Nanoencapsulation of volatile compounds has been shown to be an important tool that can be used to overcome the lack of stability of these compounds. In this work, we describe the preparation and characterization of chitosan nanoparticles functionalized with β-cyclodextrin containing carvacrol and linalool. The toxicity and biological activity were evaluated. Decreases of toxicity were observed when the compounds were nanoencapsulated. The nanoparticles presented insecticidal activity against the species Helicoverpa armigera (corn earworm) and Tetranychus urticae (spider mite). In addition, repellent activity and reduction in oviposition were observed for the mites.

Referência(s)