Emerging Trends in Pullulan-Based Antimicrobial Systems for Various Applications

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Microbiology

Background:

• Rising global concerns over multidrug resistance (MDR) and life-threatening pathogens necessitate novel, eco-friendly antimicrobial solutions.
• Biodegradable polymers, including pullulan, are emerging as viable alternatives to conventional treatments.
• Pullulan, a GRAS-designated edible polymer, exhibits inherent antimicrobial properties and can be functionalized for enhanced efficacy.

Purpose of the Study:

• To review the biosynthesis and diverse antimicrobial applications of pullulan.
• To explore the potential of pullulan-based nanocomposites as natural alternatives against pathogenic microorganisms.
• To highlight pullulan's role in developing sustainable solutions for healthcare and food industries.

Main Methods:

• Literature review focusing on pullulan biosynthesis, antimicrobial mechanisms, and nanocomposite formulations.
• Analysis of studies investigating pullulan's efficacy against bacteria, fungi, and viruses.
• Examination of pullulan-based films and their impregnation with agents like silver nanoparticles (AgNPs) and chitosan.

Main Results:

• Pullulan demonstrates significant antibacterial, antifungal, and antiviral activities.
• Pullulan facilitates the biogenic synthesis of silver nanoparticles (AgNPs), enhancing antimicrobial potency.
• Pullulan-based nanocomposites show potential in wound healing, food packaging, and extending the shelf-life of produce.

Conclusions:

• Pullulan is a versatile biopolymer with substantial potential as an antimicrobial agent and a matrix for developing effective nanocomposites.
• Pullulan-based materials offer sustainable and economically viable strategies to combat multidrug-resistant pathogens.
• Further research into pullulan-based innovations can address critical challenges in public health and food security.