INVESTIGADORES
ZALAZAR Cristina Susana
artículos
Título:
Preparation and Characterization of Lignin Microparticles‑in‑Alginate Beads for Atrazine Controlled Release
Autor/es:
C. BUSATTO; M.E. TAVERNA; M. LESCANO; C. ZALAZAR; D. ESTENOZ
Revista:
JOURNAL OF POLYMERS AND THE ENVIRONMENT
Editorial:
SPRINGER/PLENUM PUBLISHERS
Referencias:
Año: 2019
ISSN:
1566-2543
Resumen:
The use of lignin as polymeric matrices for controlled release systems in agriculture is a promising alternative for its revalorization.In this work, different atrazine delivery systems were studied. Lignin derived from ionic isolation was used for thepreparation of atrazine-loaded microparticles by the solvent extraction/evaporation and microfluidic techniques. Microparticleswere also encapsulated in sodium alginate beads. Lignin microparticles prepared by microfluidics presented a largerparticle size, higher encapsulation efficiency and a narrow size distribution. The in vitro release of atrazine was evaluated inwater. Atrazine release from microparticles prepared by the solvent extraction/evaporation technique showed a significantburst release, and this effect was reduced by incorporating microparticles within alginate beads. In addition, the phytotoxicityof the systems was evaluated employing Lactuca sativa seeds. The phytotoxicity results showed that lignin-based formulationsare safe according to the parameters evaluated, in contrast with commercial atrazine that resulted phytotoxic.
