Abstract:
This research focuses on the creation of chitosan-sodium alginate-based nano-bio-composite
films integrated with olive oil to overcome the current limitations in mechanical properties,
biodegradability, and antimicrobial activity of bio-composite materials. Targeting applications
like food packaging, these films leverage the biocompatible and biodegradable nature of
chitosan and sodium alginate, with olive oil acting as a plasticizer to enhance flexibility,
durability, and water barrier properties. The study aims to synthesize nano-bio-composite films
to improve mechanical strength and examining the effects of olive oil on their flexibility,
barrier properties, and antimicrobial activity. This innovation addresses the need for
biodegradable materials with specific performance criteria, especially in sectors like food
preservation, biomedical applications, and environmental sustainability. The comparative
analysis of the two sample compositions reveals: The T-sample exhibited a tensile strength of
4.2 MPa and elongation at break of 16.2%, indicating a formulation that is stronger and more
flexible. The O-Sample showed a tensile strength of 3.3 MPa and elongation at break of 13.1%,
suggesting a compromise in mechanical properties due to the addition of sodium alginate and
calcium chloride. The findings indicate that olive oil is an effective plasticizer for chitosansodium alginate-based nano-bio-composite films, significantly improving their performance.
However, the addition of sodium alginate and calcium chloride in the O-sample compromises
its mechanical properties, demonstrating the need for a balanced formulation. Further research
on sodium-alginate based nano-bio-composite films incorporated with olive oil could delve
into optimizing the formulation for its improved barrier properties and antimicrobial efficacy.
Future studies should consider the impact of various olive oil concentrations on the physical
and chemical characteristics of the films. Investigating the potential for incorporating natural
antioxidants and antimicrobials from other sources could also enhance the films applicability
in food preservation and medical fields. Additionally, life cycle assessments to evaluate the
environmental sustainability of these films alongside consumer acceptance studies, would be
essential for their successful market introduction and broader application.
