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Chitosan functional properties

R Shepherd1, S Reader, A Falshaw

  • 1Industrial Research Limited, Gracefield, Wellington, New Zealand. R.Shepherd@irl.cri.nz

Glycoconjugate Journal
|June 1, 1997
PubMed
Summary
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Squid pen chitosan offers improved thickening, suspending, and film-forming properties compared to crustacean chitosan. This novel, low-cost material shows potential for medical and analytical applications.

Area of Science:

  • Biopolymers
  • Materials Science
  • Marine Biotechnology

Background:

  • Chitosan, a derivative of chitin, is widely used due to its unique properties.
  • Currently, chitosan is primarily sourced from crustacean exoskeletons as a byproduct of food processing.
  • Squid pens represent an underutilized, renewable source of chitin and chitosan.

Purpose of the Study:

  • To evaluate the functional properties of chitosan extracted from squid pens.
  • To compare squid pen chitosan with chitosan derived from crustaceans.
  • To assess the potential of squid pen chitosan for various applications.

Main Methods:

  • Chitosan extraction from squid pens.
  • Assessment of composition, rheology, flocculation, film formation, and antimicrobial properties.

Related Experiment Videos

  • Comparative analysis with crustacean-sourced chitosans.

    • Main Results:

    • Squid pen chitosan exhibited a colorless appearance and low ash content.
    • Significantly improved thickening and suspending properties were observed in squid chitosan.
    • Films produced from squid chitosan demonstrated enhanced elasticity compared to crustacean chitosan.

    Conclusions:

    • Squid pen chitosan possesses superior rheological and film-forming characteristics.
    • While flocculation capacity was lower, it can potentially be improved.
    • High-quality squid pen chitosan is suitable for advanced applications, including medical and analytical uses.