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 JEAS  Vol.6 No.1 , March 2016
Microencapsulation of L-Ascorbic Acid by Spray Drying Using Sodium Alginate as Wall Material
Abstract: L-ascorbic acid is a water soluble vitamin (vitamin C) widely used as an additive in foods and cosmetics. It has high instability against certain environmental factors; the main cause of its deterioration is oxidation. Microencapsulation is an effective protection technique of L-ascorbic acid from its degradation reactions. This work is focused on the encapsulation of L-ascorbic acid by spray drying technique using sodium alginate as wall material. The microcapsules morphology was observed by scanning electron microscopy (SEM) and the encapsulation efficiency was determined by spectrophotometric analysis. Results showed that encapsulation efficiency was of 93.48% and after 30 days was of 92.55%; differences were not significant, so that the stability of L-ascorbic acid was not affected. Encapsulation yields obtained were low, at around 30%, but the microcapsules morphology obtained is spherical.
Cite this paper: Marcela, F. , Lucía, C. , Esther, F. and Elena, M. (2016) Microencapsulation of L-Ascorbic Acid by Spray Drying Using Sodium Alginate as Wall Material. Journal of Encapsulation and Adsorption Sciences, 6, 1-8. doi: 10.4236/jeas.2016.61001.
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