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Revista Colombiana de Ciencias Químico - Farmacéuticas
versão impressa ISSN 0034-7418
Resumo
PASTUNA-PULLUTASIG, Alex et al. Microencapsulation of oil sacha inchi (Plukenetia volubilis L.) by spray drying. Rev. colomb. cienc. quim. farm. [online]. 2016, vol.45, n.3, pp.422-437. ISSN 0034-7418. https://doi.org/10.15446/rcciquifa.v45n3.62029.
The objective of this research was microencapsulated sacha inchi oil by spray drying, in order to prevent oxidative degradation reactions, given its high content of mono-unsaturated and polyunsaturated fatty acids, which present great health benefits. Employing a maltodextrin-gum arabic system in the same ratio (1:1), the inlet temperature and the oil charge was evaluated, being 150 °C and 33% the best conditions during the drying process, obtaining a performance and efficiency microencapsulation of 82.10 ± 0.99% and 93.90 ± 0.56%, respectively. It should be mentioned that this research is the first one to use the spray drying technique and maltodextrin and arabic gum as polymeric wall formers agents for the sacha inchi oil microen-capsulation. By physicochemical analysis, the microencapsulated sacha inchi oil moisture was evaluated, keeping a moisture content at 26 weeks of 4.60 ± 0.02%, applying gas chromatography, it was found that there is no variation in the fatty acid profile before and after microencapsulation. Through infrared spectroscopy it was shown that sacha inchi oil is inserted into the core of the microcapsules. The electron microscopy scanning allowed to observe that the microcapsules have a spherical shape with a smooth surface and free of pores which prevent direct contact of the oil with different ambient conditions.
Palavras-chave : Microencapsulation; sacha inchi; spray drying.