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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۳، شماره ۱۰، صفحات ۳۷۹۵-۳۸۱۱
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عنوان انگلیسی Development of Bioplastic Films from Sargassum muticum Alginate: Properties and Applications in Food Packaging
چکیده انگلیسی مقاله To address the challenge posed by the non-degradability of conventional plastic packaging materials and their insufficient treatment, this research undertook the development of a bio-plastic film employing alginate sourced from Sargassum muticum, a brown alga, for specific food packaging applications. Several films were prepared using a low cross-linking casting method with varying mass ratios at two distinct temperatures (i.e.: 50 °C and 70 °C) denoted as FA625 and FA627. The use of crosslinking in this study aimed to enhance the water resistance, mechanical strength, and barrier properties of the bioplastic film, consequently improving its suitability for food packaging applications. Thermal properties were investigated through thermogravimetric analysis/differential scanning calorimetry. Mechanical properties were studied by tensile and hardness measurements. Scanning electron microscopy was performed to conduct the morphological examination. The antimicrobial activity of films was investigated using the agar diffusion method. The differential scanning calorimetry curves of the two films show significant disparities in terms of endothermic and exothermic intensities, suggesting that the cross-linking temperature has a significant influence on the thermal properties. However, it was found that varying the cross-linking temperature did not significantly affect the thermal stability of the alginate-based films. The mechanical properties exhibited noteworthy improvements in the tensile strength, hardness, and thickness of FA627 films compared to those of the FA625 films. The micrographs reveal distinct disparities between the films cross-linked at 50 °C and 70 °C. Notably, FA625 films depicted a structure with small cavities covering the surface, whereas FA627 exhibited an augmentation of dark voids dispersed in a heterogeneous manner. Moreover, both films demonstrated marginal antimicrobial activity in inhibiting the growth of E. coli and Bacillus cereus, suggesting the potential of sodium alginate-based films to extend the shelf life and improve the safety of packaged food products.
کلیدواژه‌های انگلیسی مقاله Antimicrobial activity,Biopolymer films,Calcium chloride,Food Packaging,Sargassum muticum,Sodium alginate
نویسندگان مقاله Nawal Bouzenad |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Nesrine Ammouchi |
Department of Sciences and Technology, Faculty of Technology, University 20 August 1955 Skikda 21000, ALGERIA

Nadjla Chaib |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Youghourta Belhocine |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Abderrahmane Belhaoues |
Laboratory of Preparation, Modification, and Applications of Multiphase Polymeric Materials (LMPMP), Process Engineering Department, Faculty of Technology, Ferhat Abbas Setif-1, University, Setif 19000, ALGERIA

Nada Hamrouche |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Seif El Islam Boudagha |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Amdjed Abdennouri |
Department of Process Engineering, Faculty of Technology, University 20 August 1955 Skikda, 21000, ALGERIA

Wafa Zahnit |
Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, Ouargla 30000, ALGERIA

نشانی اینترنتی https://ijcce.ac.ir/article_715380_d29e07ba3fb7ae56be0715de75a84661.pdf
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