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Microencapsulation of astaxanthin in a chitosan matrix

  • I. Higuera-Ciaparaa(Author)
    ,
  • L. Felix-Valenzuelaa(Author)
    ,
  • F. M. Goycooleaa(Author)
    ,
  • W. Argüelles-Monala(Author)
  • aLab. of Supercritical Extraction
Research Output: Contribution to journal Article Peer-review

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 41-45 (5 pages)

Journal (Volume, Issue Number)

Carbohydrate Polymers (Volume 56, Issue 1)

Publication milestones

  • Published - 17/05/2004

Publication status

Published - 17/05/2004

ISSN

0144-8617

External Publication IDs

  • Scopus: 2042546058

Abstract

Synthetic astaxanthin was microencapsulated in a chitosan matrix cross-linked with glutaraldehyde by using the method of multiple emulsion/solvent evaporation. A powdered product was obtained containing microcapsules with a diameter of 5-50 μm. The stability of the pigment in the microcapsules was studied under storage at 25, 35 and 45 °C for 8 weeks by measuring isomerization and loss of concentration of pigment. Pigments were extracted from the microcapsules with a mixture of dichloromethane/methanol (50:50) and the astaxanthin was analyzed by HPLC with a diode array detector (480 nm). Results showed that the microencapsulated pigment did not suffer isomerization nor chemical degradation under the investigated storage conditions.

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