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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides

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Author(s):
Eveline S. Costa ; Bruno Perlatti ; Everton M. da Silva ; Andreia P. Matos ; Maria Fátima G. F. da Silva ; João B. Fernandes ; Vânia G. Zuin ; Caio M. P. da Silva ; Moacir R. Forim
Total Authors: 9
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 28, n. 1, p. 126-135, Jan. 2017.
Web of Science Citations: 9
Abstract

Microcapsules of sugarcane bagasse lignin loaded with organic extracts of neem (Azadirachta indica) were prepared and evaluated as potential bioinsecticides. Lignins were extracted and modified by oxidation and acetylation reactions providing different biopolymers. Afterwards, they were characterized through several analytical techniques. The formulations were initially prepared as colloidal suspension of lignin nanoparticles, which were then spray-dried. The products were submitted to quality control protocols using high performance liquid chromatography (HPLC), thermal and photochemical degradation studies, followed by biological assays against Spodoptera frugiperda and Diatraea saccharalis. The formulations showed increases in both thermal and photo stability of approximately 40% compared with control samples. All the formulated microparticles were efficient against the insects evaluated and required a shorter time to achieve 100% mortality than the controls. The use of sugarcane bagasse lignins to prepare microparticles improved the resistance of neem extracts against abiotic factors, retaining the biological activity of this biopesticide. (AU)

FAPESP's process: 11/11860-5 - Phytochemical studies on plants from cerrado and their potential to control symbiont microorganisms of insect plague
Grantee:Moacir Rossi Forim
Support type: Regular Research Grants
FAPESP's process: 14/50827-1 - From orange waste to chemicals: contributions of an integrated biorefinary approach towards sustainable development in Brazil
Grantee:João Batista Fernandes
Support type: Regular Research Grants
FAPESP's process: 11/00970-4 - Nano and micro particles from Meliaceae extracts for pest control using lignin from sugarcane
Grantee:Eveline Soares Costa
Support type: Scholarships in Brazil - Doctorate