Publication: Microencapsulation of astaxanthin in a chitosan matrix
Authors
Higuera Ciapara, I. ; Felix Valenzuela, L. ; Argüelles Monal, W. ; Goycoolea Valencia, Francisco Martín
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Publisher
Elsevier
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DOI
https://doi.org/10.1016/j.carbpol.2003.11.012
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info:eu-repo/semantics/article
Description
© 2003 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This document is the Accepted Published Manuscript version of a Published Work that appeared in final form in Carbohydrate Polymers. To access the final edited and published work see https://doi.org/10.1016/j.carbpol.2003.11.012
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 containing microcapsules with a diameter of 5–50 mm was obtained. The stability of the pigment in the microcapsules was studied under storage at 25, 35 and 45 8 °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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Citation
Carbohydrate Polymers, 2004, 56 (1), 41-45
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