COMPARISON IN BIODEGRADABLE FILMS FORMULATED FROM TWO RED SEAWEEDS OF KARACHI COAST
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Keywords

Red seaweed
Melanothamnus
Afaq hussainii
Gracilaria corticata
Agar
Biodegradable films

How to Cite

Hira, A., Tabassum, A., Ali, T. M., Qaisar, S., & Aliya, R. (2018). COMPARISON IN BIODEGRADABLE FILMS FORMULATED FROM TWO RED SEAWEEDS OF KARACHI COAST. Pakistan Journal of Marine Sciences, 27(2), 87–92. Retrieved from http://pakjmsuok.com/index.php/pjms/article/view/27

Abstract

In this research a comparative study was made between biodegradable films obtained from two different indigenous red seaweeds collected from Karachi coast. Gracilaria corticata and Melanothamnus afaqhussainii were collected from the Buleji coast of Karachi, Pakistan (24o50’N, 66o48’E). Agar extracted from both the seaweed was used and incorporated as raw material for the formulation of biodegradable films. Sorbitol was used as a plasticizer to increase the tensile strength and elasticity of the films. The results showed that the solubility of M. afaq hussainii was higher than G. corticata. The soil burial test showed that biodegradability percent of M. afaq hussainii (60%) was higher as compared to G. corticata (40%). The tensile strength and elongation break of G. corticata (9.79±1.21 MPa and 28.72±5.13%) was stronger than the M. afaq hussainii (3.98±1.08 MPa and 16.32±3.80). Results of the current study showed that G. corticata has stronger gelling property as compared to M. afaq hussainii.

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