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6th Commonwealth Chemistry Posters
United Kingdom | 1 - 2 October 2025

P195
Production and characterization of biofilm from seaweed-extracted pectin reinforced with chitosan extracted from shrimps
Poster Presenter
Authors
Abdoulie G B Baldeh, Saffie Bah, Ndey Saffie Jatta, Mamudou Jallow, Lamin BS Dibba
Affiliations
Part of Topic
Responsible Energy (SDGs 7 and 12)
Production and characterization of biofilm from seaweed-extracted pectin reinforced with chitosan extracted from shrimps
Abdoulie G.B. Baldeh, Saffie Bah, Ndey Saffie Jatta, Mamudou Jallow and Lamin BS Dibba
Department of Physical and Natural Sciences, University of the Gambia, Faraba, The Gambia
INTRODUCTION
Seaweeds are common marine organisms often found along ocean
shores, with recent excessive accumulation observed along The
Gambia’s coastline.
The seaweed bloom most special in Gunjur, The Gambia is
reportedly linked to the operations of a local fishmeal plant.
This bloom negatively impacts marine life, damages fishing nets, and threatens tourism by affecting beach area.
The situation has provoked public protests involving youth, activists,
village elders, and criticisms of the government's role.
This study aims to utilize the seaweed by extracting pectin from it and combining it with shrimp-derived chitosan to create a biofilm for potential use in food packaging
CONCLUSION
The biofilms produced were biodegradable and excellent antimicrobial properties against pathogenic E. coli.
This study shows that useful natural product like pectin can obtained from the seaweed bloom in the Gambia with application in food packaging. Hence providing solution for seaweed pollution and synthetic plastic
REFERENCE
John, D. M., Tittley, I., Lawson, G. W. and Pugh, P. J. A. (1994). Distribution of Seaweed Floras in the Southern Ocean. Botanica Marina, vol. 37, no. 3, pp. 235- 240. https://doi.org/10.1515/botm.1994.37.3.235
Demir, D., Ceylan, S., Göktürk, D., and Bölgen, N. (2021). Extraction of pectin from albedo of lemon peels for preparation of tissue engineering
scaffolds. Polymer Bulletin, 78(4), 2211–2226. https://doi.org/10.1007/s00289-020-03208-1
Manneh, M.(2022). Seaweed blooms caused by fishmeal
plants hurt Gambian coastal communities. Dialogue
Earth. https://dialogue.earth/en/ocean/seaweed-
blooms-caused-by-fishmeal-plants-hurt-gambian-
coastal-communities/
