Mariana da Silva Alves1, Maria Inês Bruno Tavares2*

This paper describes the research on the encapsulation of chia bioactives, which was derived from the extraction of Salvia hispânica seed using ethanol, employing percolation method and by Soxhlet. The obtained materials were characterized solution by nuclear magnetic resonance analysing the carbon-13 and hydrogen nuclei. The extracts were encapsulated with polycaprolactone (PCL) using nanopreciptation method. The nanoencapsulated materials were also analyses as their molecular homogeneity through low-field nuclear magnetic resonance in the time domain (NMR-DT). For that the determination of proton spin-lattice relaxation time was used to confirm the nanoencapulation. The measurements of size and zeta potential were also done employing DLS. From the results was conclude that the bioactives extracted from the seeds are associated to triacylgliceride major composed by α-linolenic acid (C18:3) and by linoleic acid (C18:2). It was also observed that the nanoencapsulation showed to be effective to produce particles with size between 203 a 430 nm, this size is appropriated to nutraceuticals formulations and/or to be added to food preparations.

Keywords: Encapsulation; Bioactives compounds; Polymeric encapsulation; PCL.

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