Effect of Drying Method in the Maintenance of Bioactive Compounds and Antioxidant Activity of Feijoa Pulp (Acca sellowiana)

The aim of this work was to evaluate the bioactive compounds contents and the antioxidant activity preserved in the obtained powders of dehydrated feijoa pulp after two drying methods applied: Spray drying and Freeze-drying methods. Ascorbic acid, total phenolic and total flavonoids content, antioxi...

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Bibliographic Details
Published in:Orbital : The Electronic Journal of Chemistry 2019-12, Vol.11 (6)
Main Authors: Ana Paula Buratto, Solange Teresinha Carpes, Edimir Andrade Pereira, Camila Diedrich, Tatiane Luiza Cadorin Oldoni, Leticia Dangui da Silva
Format: Article
Language:English
Subjects:
antioxidant
freeze-drying
phenolics
spray-drying
vitamin C
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Summary:The aim of this work was to evaluate the bioactive compounds contents and the antioxidant activity preserved in the obtained powders of dehydrated feijoa pulp after two drying methods applied: Spray drying and Freeze-drying methods. Ascorbic acid, total phenolic and total flavonoids content, antioxidant activity (by DPPH, ABTS and FRAP methods) were determined and the obtained data were evaluated using ANOVA and Tukey test (p < 0.05). Spray drying method produced powders with higher amounts of total phenolic and total flavonoid contents, while Freeze-drying method presented higher amounts of ascorbic acid and higher antioxidant activity. Both applied methods were effective in maintaining the antioxidant properties of Feijoa fruits. DOI: http://dx.doi.org/10.17807/orbital.v11i6.1223
ISSN:1984-6428