COMPARISON OF BIODEGRADABLE FILMS DERIVED FROM CARRAGEENAN EXTRACTED FROM RED SEAWEEDS ALONG THE KARACHI COASTLINE
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Keywords

biodegradable film
carrageenan
seaweed
Karachi coast

How to Cite

Iftikhar, F., Tabassum, A., & Aliya, R. (2024). COMPARISON OF BIODEGRADABLE FILMS DERIVED FROM CARRAGEENAN EXTRACTED FROM RED SEAWEEDS ALONG THE KARACHI COASTLINE. Pakistan Journal of Marine Sciences, 33(1), 1–8. Retrieved from http://pakjmsuok.com/index.php/pjms/article/view/152

Abstract

This study aimed to assess and compare the properties of biodegradable films produced from carrageenan extracted from two indigenous seaweed species, Hypnea pannosa and Halymenia porphyraeformis, sourced from the Manora area of Karachi. Glycerol was employed as a plasticizer to enhance the tensile strength and elasticity of the biofilms. Results revealed a significant disparity in weight loss between Hypnea pannosa (40%) and Halymenia porphyraeformis (28%) during the soil burial test, while varying solubility rates were observed in different mediums. Moreover, Halymeniaporphyraeformis exhibited higher tensile strength and elongation at break compared to Hypnea pannosa, indicating its superior gelling power and elasticity.

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