Abstract

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.

Details

Title
Carvacrol and linalool co-loaded in β-cyclodextrin-grafted chitosan nanoparticles as sustainable biopesticide aiming pest control
Author
Campos, Estefânia V R 1 ; Proença, Patrícia L F 2 ; Oliveira, Jhones L 2 ; Pereira, Anderson E S 2 ; Lígia Nunes de Morais Ribeiro 3   VIAFID ORCID Logo  ; Fernandes, Fabrício O 4 ; Gonçalves, Kelly C 4 ; Polanczyk, Ricardo A 4 ; Pasquoto-Stigliani, Tatiane 5 ; Lima, Renata 5   VIAFID ORCID Logo  ; Melville, Cirano C 4 ; Della Vechia, Jaqueline F 4 ; Andrade, Daniel J 4 ; Fraceto, Leonardo F 1 

1  São Paulo State University – UNESP, Institute of Science and Technology, Sorocaba, SP, Brazil; Department of Biochemistry and Tissue Biology, State University of Campinas, Campinas, SP, Brazil 
2  São Paulo State University – UNESP, Institute of Science and Technology, Sorocaba, SP, Brazil 
3  Department of Biochemistry and Tissue Biology, State University of Campinas, Campinas, SP, Brazil 
4  São Paulo State University – UNESP, College of Agricultural and Veterinary Sciences, Department of Crop Protection, Jaboticabal, SP, Brazil 
5  Department of Biotechnology, University of Sorocaba, Sorocaba, Brazil 
Pages
1-14
Publication year
2018
Publication date
May 2018
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-018-26043-x
ProQuest document ID
2039834990
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.