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http://dx.doi.org/10.1016/0308-8146(91)90053-Q

has been cited by the following article:

• TITLE: Microencapsulation of L-Ascorbic Acid by Spray Drying Using Sodium Alginate as Wall Material

  AUTHORS: Ferrándiz Marcela, Capablanca Lucía, Franco Esther, Mira Elena

  KEYWORDS: L-Ascorbic Acid, Sodium Alginate, Spray Drying, Microencapsulation, Stability

  JOURNAL NAME: Journal of Encapsulation and Adsorption Sciences, Vol.6 No.1, March 2, 2016

  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.