Plant-Based Polysaccharide Gums as Sustainable Bio-Polymers: Focus on Tragacanth Gum and Its Emerging Applications

Area of Science:

• Materials Science
• Polymer Science
• Biotechnology

Background:

• Plant-based natural polymers offer eco-friendly alternatives to synthetics.
• Tragacanth gum (TG), from *Astragalus* species, is a unique polysaccharide with historical use.
• Recent research highlights TG's potential as a multifunctional biopolymer.

Purpose of the Study:

• To review the structural characteristics, properties, and modifications of TG.
• To compare TG with other plant-derived gums.
• To explore TG's applications in drug delivery, tissue engineering, wound healing, packaging, and food.

Main Methods:

• Literature review of structural characteristics, physicochemical properties, and modification strategies.
• Comparative analysis of TG with other plant-derived gums.
• Exploration of TG's applications across various scientific fields.

Main Results:

• TG exhibits biocompatibility and gel-forming abilities, suitable for diverse applications.
• Challenges include quality variability, standardization issues, and large-scale production difficulties.
• Emerging trends involve nanoformulations, hybrid composites, and smart hydrogels.

Conclusions:

• Tragacanth gum is a promising sustainable biomaterial with significant industrial and biomedical potential.
• Addressing production and standardization challenges is crucial for its wider adoption.
• Future research should focus on nanoformulations and hybrid materials to advance TG's role in the green polymer economy.