Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides
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.
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Sociedade Brasileira de Química
2017
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oai:scielo:S0103-505320170001001262017-01-05Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic InsecticidesCosta,Eveline S.Perlatti,BrunoSilva,Everton M. daMatos,Andreia P.Silva,Maria Fátima G. F. daFernandes,João B.Zuin,Vânia G.Silva,Caio M. P. daForim,Moacir R. lignin microparticle biopesticide biorational control stability 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.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.28 n.1 20172017-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000100126en10.5935/0103-5053.20160155 |
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Costa,Eveline S. Perlatti,Bruno Silva,Everton M. da Matos,Andreia P. Silva,Maria Fátima G. F. da Fernandes,João B. Zuin,Vânia G. Silva,Caio M. P. da Forim,Moacir R. |
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Costa,Eveline S. Perlatti,Bruno Silva,Everton M. da Matos,Andreia P. Silva,Maria Fátima G. F. da Fernandes,João B. Zuin,Vânia G. Silva,Caio M. P. da Forim,Moacir R. Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
author_facet |
Costa,Eveline S. Perlatti,Bruno Silva,Everton M. da Matos,Andreia P. Silva,Maria Fátima G. F. da Fernandes,João B. Zuin,Vânia G. Silva,Caio M. P. da Forim,Moacir R. |
author_sort |
Costa,Eveline S. |
title |
Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
title_short |
Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
title_full |
Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
title_fullStr |
Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
title_full_unstemmed |
Use of Lignins from Sugarcane Bagasse for Assembling Microparticles Loaded with Azadirachta indica Extracts for Use as Neem-Based Organic Insecticides |
title_sort |
use of lignins from sugarcane bagasse for assembling microparticles loaded with azadirachta indica extracts for use as neem-based organic insecticides |
description |
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. |
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Sociedade Brasileira de Química |
publishDate |
2017 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000100126 |
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