Engineering and Technology

Potential of Coccolithophore Microalgae as Fillers in Starch-Based Films for Active and Sustainable Food Packaging

A. S. P. Moreira, J. Gonçalves, et al.

Discover how employing coccolithophore microalgae like Emiliania huxleyi and Chrysotila pseudoroscoffensis in starch-based films has revolutionized biodegradable and bioactive food packaging. This innovative research conducted by Ana S P Moreira and colleagues highlights enhanced hydrophobicity and impressive antioxidant activity, paving the way for sustainable packaging solutions.

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Abstract

Coccolithophore microalgae, such as Emiliania huxleyi (EHUX) and Chrysotila pseudoroscoffensis (CP), are composed of calcium carbonate (CaCO3) and contain bioactive compounds. This study incorporated these microalgae as fillers in starch-based films to create biodegradable and bioactive food packaging. Films were produced using varying proportions of filler (2.5, 5, 10, and 20%, w/w), and compared to films with commercial CaCO3. Microalgae incorporation reduced film rigidity, while their hydrophobic compounds increased surface hydrophobicity. Unlike commercial CaCO3, microalgae-containing films exhibited antioxidant activity, with EHUX 20% showing 60.4% ABTS radical inhibition. Overall, microalgae improved film hydrophobicity and antioxidant capacity, suggesting potential for active and sustainable food packaging.

Publisher

Foods

Published On

Jan 23, 2023

Authors

Ana S P Moreira, Joana Gonçalves, Francisco Sousa, Inês Maia, Hugo Pereira, Joana Silva, Manuel A Coimbra, Paula Ferreira, Cláudia Nunes

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