Evaluation of the microencapsulation of orange essential oil in biopolymers by using a spray-drying process.

Scientific Reports
Maria Clara Santana AguiarMoacir Rossi Forim

Abstract

Essential oils are volatile compounds commonly used by several industries, easily degradable, which restrains their applications. Therefore, we developed and validated a methodology for producing microcapsules loaded with orange essential oil, using a spray-drying process. The experimental design results showed that the combination between a low flow transfer rate (0.15 L h-1) of the colloidal suspension, a higher drying air flow rate (536 L h-1), and an inlet air temperature of 150 °C to the spray-dryer were the most important parameters for the atomization efficiency. The method optimization resulted in microcapsules with powder recovery between 7.6 and 79.9% (w w-1), oil content ranging from 8.9 to 90.4% (w w-1), encapsulation efficiency between 5.7 and 97.0% (w w-1), and particle sizes with a high frequency of distribution less than 4 μm. In these experiments, gelatin and lignin were evaluated as biopolymers of encapsulation. We also developed an analytical method using headspace gas chromatography. The matrix effects could be addressed by using matrix-matched calibration curves. The chromatographic analysis was linear and selective for D-limonene between 0.025 and 3.00 µg mL-1, with correlation coefficients higher than 0.9...Continue Reading

References

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Oct 30, 2016·Trends in Plant Science·Roman Pavela, Giovanni Benelli
Aug 1, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Markus WitzlerMargit Schulze

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Citations

May 1, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Iva BrlekAna Sutlović

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Methods Mentioned

BETA
scanning electronic microscopy

Software Mentioned

SPSS Package for Science
ImageJ

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