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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Aguiar, Maria Clara Santana [1] ; das Gracas Fernandes da Silva, Maria Fatima [1] ; Fernandes, Joao Batista [1] ; Forim, Moacir Rossi [1]
Total Authors: 4
[1] Univ Fed Sao Carlos, Dept Chem, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 10, n. 1 JUL 16 2020.
Web of Science Citations: 2

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 degrees 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 mu m. 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 mu g mL(-1), with correlation coefficients higher than 0.99. The analytical method had limits of detection and quantitation of 0.024 and 0.073 mg g(-1) for gelatin and 0.039 and 0.119 mg g(-1) for lignin, respectively. (AU)

FAPESP's process: 14/50918-7 - INCT 2014: for the Biorational Control of Pest-Insect and Phytopathogens
Grantee:Maria Fátima das Graças Fernandes da Silva
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/21201-8 - Novel delivery of phytochemicals for sustainable crop protection
Grantee:Maria Fátima das Graças Fernandes da Silva
Support type: Regular Research Grants