Use of lignins from sugarcane bagasse for assembling microparticles loaded with Azadirachta indica extracts for use as neem-based organic insecticides
Research output: Journal contributions › Journal articles › Research › peer-review
Standard
In: Journal of the Brazilian Chemical Society, Vol. 28, No. 1, 01.01.2017, p. 126-135.
Research output: Journal contributions › Journal articles › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Use of lignins from sugarcane bagasse for assembling microparticles loaded with Azadirachta indica extracts for use as neem-based organic insecticides
AU - Costa, Eveline S.
AU - Perlatti, Bruno
AU - Da Silva, Everton M.
AU - Matos, Andreia P.
AU - Da Silva, Maria Fátima G.F.
AU - Fernandes, João B.
AU - Zuin, Vânia G.
AU - Da Silva, Caio M.P.
AU - Forim, Moacir R.
N1 - Publisher Copyright: ©2017 Sociedade Brasileira de Química.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - 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.
AB - 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.
KW - Biopesticide
KW - Biorational control
KW - Lignin
KW - Microparticle
KW - Stability
KW - Chemistry
UR - http://www.scopus.com/inward/record.url?scp=85003810972&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/5252ecfa-7048-3865-b1a0-078e2b32ba35/
U2 - 10.5935/0103-5053.20160155
DO - 10.5935/0103-5053.20160155
M3 - Journal articles
AN - SCOPUS:85003810972
VL - 28
SP - 126
EP - 135
JO - Journal of the Brazilian Chemical Society
JF - Journal of the Brazilian Chemical Society
SN - 0103-5053
IS - 1
ER -