Quality Control for Lignin and Gelatin Microcapsules Loaded with Orange Essential Oil

Sustainable natural product-based microstructured systems and biopolymers are strong candidates for use in crop protection. Lignin and gelatin microcapsules loaded with orange essential oil were developed with spray-drying in order to enhance its potential. We evaluated the microparticle controlled release mechanisms, biological effects, structural and thermal properties. A quantitative method using headspace-gas chromatography was developed and evaluated for the controlled release of the essential oils. Controlled release studies showed a linear relationship between the biopolymer and essential oil concentrations when retaining volatile compounds. Thermal analyses demonstrated increases in essential oil stability when microencapsulated, especially for lignin as a biopolymer. These results showed that biopolymer type was the main factor influencing quality analysis parameters. Finally, microcapsules loaded with orange essential oil were applied in a bioassay, and showed gains in toxicity against Spodoptera frugiperda compared to non-encapsulated oil.

Bibliographic Details

Main Authors:	Aguiar,Maria Clara S., Denadae,Bárbara E., Silva,Maria Fátima G. F., Fernandes,João B., Bittencourt,Paulo R. S., Scremin,Fernando R., Forim,Moacir R.
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Química 2022
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000100085
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