Ultra-high pressure LC determination of glucosamine in shrimp by-products and migration tests of chitosan films

Ana Sanches-Silva, Tiago Ribeiro, Tânia G. Albuquerque, Perfecto Paseiro, Raquel Sendón, Ana Bernaldo De Quirós, Jaime López-Cervantes, Dalia I. Sánchez-Machado, Herlinda Soto Valdez, Inmaculada Angulo, Goizane P. Aurrekoetxea, Helena S. Costa

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Chitosan, a multiple applications molecule, was isolated from shrimp by-products by fermentation. The amount of chitosan in the solid fraction of the fermented extract was measured after its conversion in the respective glucosamine units. The procedure includes an acid hydrolysis (110°C, 4 h with HCl 8 M) and a derivatization with 9-fluorenylmethyl chloroformate (Fmoc-Cl). Ultra-high-pressure liquid chromatography method was developed and optimized. Excellent peaks resolution was achieved in just 10 min. The method was evaluated in what concerns to validation parameters such as linearity, repeatability, quantification limit, and recovery. Migration tests of films prepared with chitosan were carried out in two simulants: ultrapure water and ethanol 95% (v/v).

Original languageEnglish
Pages (from-to)633-640
Number of pages8
JournalJournal of Separation Science
Volume35
Issue number5-6
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

Keywords

  • Chitosan
  • Glucosamine
  • Migration tests
  • Shrimp by-products
  • Ultra-high-pressure liquid chromatography

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