Extraction, Characterization and Applications of Biopolymers from Sustainable Sources

Area of Science:

• Materials Science
• Sustainable Chemistry
• Biotechnology

Background:

• Growing demand for sustainable materials to reduce environmental impact.
• Need for alternatives to petrochemical-based plastics to mitigate pollution.
• Increasing exploration of biopolymers from diverse renewable resources.

Purpose of the Study:

• To review recent progress in the biopolymer value chain over the last five years.
• To critically assess greener extraction and fractionation methods for biopolymers.
• To map advanced characterization techniques to functional properties for targeted applications.

Main Methods:

• Comparative analysis of plant, microbial, fungal, and marine/algal biopolymer sources.
• Evaluation of advanced extraction and fractionation techniques (e.g., ultrasound, microwave, subcritical water, supercritical CO2, ionic liquids, deep eutectic solvents, enzymatic processes).
• Summary of downstream processing (purification, crosslinking, derivatization, blending, nanocomposites) and characterization methods.

Main Results:

• Assessment of yield-selectivity trade-offs, scalability, energy demand, and solvent recovery for various extraction methods.
• Identification of key bottlenecks: feedstock variability, solvent limitations (viscosity, recyclability), and performance gaps (barrier, thermal properties).
• Mapping of advanced characterization to functional properties for diverse applications in food, biomedical, packaging, and cosmetics.

Conclusions:

• Biopolymer development faces challenges in feedstock consistency and performance parity with petrochemicals.
• Promising future directions include novel solvents, AI-driven optimization, engineered biopolymers, and circular economy approaches.
• Emphasis on aligning material design with realistic end-of-life recovery strategies is crucial for sustainable biopolymer implementation.