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Bioplastics

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...

Types of Step-Growth Polymers: Polyesters

Types of Step-Growth Polymers: Polyesters

The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...

Microbial Bioremediation of Plastics

Microbial Bioremediation of Plastics

Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...

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Related Experiment Video

Updated: Jun 27, 2026

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming

Published on: October 10, 2025

Biodegradable Polyester-Starch Composite Films Functionalized with Phenolic Compounds: Advances, Challenges, and

Bongsoo Shin^1,2, Ajit Kumar Singh¹, Nattinee Bumbudsanpharoke³

¹Laboratory of Nano-Enabled Packaging and Safety, Department of Packaging & Logistics, Yonsei University, Yonseidaegil, Wonju-si 26493, Republic of Korea.

|June 26, 2026

Summary

Biodegradable polyester-starch films with phenolic compounds offer sustainable active food packaging. These advanced materials enhance food quality and reduce environmental impact, aligning with circular economy principles.

Keywords:

active packaging antimicrobials antioxidants biodegradability biodegradable polyesters food safety phenolic compounds sustainability thermoplastic starch

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Area of Science:

Materials Science
Food Science
Polymer Science

Background:

Growing demand for sustainable food packaging drives interest in biodegradable materials.
Polyester-starch composites offer a blend of processability, biodegradability, and active functionalities.
Phenolic compounds provide antioxidant, antimicrobial, and UV-protective properties to packaging.

Purpose of the Study:

To review recent advances in biodegradable polyester-starch composite films functionalized with phenolic compounds for active packaging.
To discuss the impact of component selection, blending, and incorporation strategies on film properties.
To identify key challenges and future directions for developing these sustainable packaging solutions.

Main Methods:

Review of scientific literature on biodegradable polyester-starch composites and phenolic functionalization.
Analysis of component selection (polyesters like PLA, PBAT, PBS, PHBV; starch; phenolics).
Examination of blending techniques, phenolic incorporation strategies, and their influence on film characteristics.

Main Results:

Films combine polyester processability with starch biodegradability and phenolic bioactivity.
Properties like compatibility, morphology, mechanical strength, barrier, and optical behavior are influenced by component interactions and processing.
Phenolic compounds impart antioxidant, antimicrobial, and UV-protective functions, enhancing active packaging capabilities.

Conclusions:

Biodegradable polyester-starch films with phenolics are a promising avenue for next-generation sustainable active packaging.
Addressing challenges like component incompatibility, moisture sensitivity, and controlled release is crucial for industrial application.
These materials support circular economy approaches in the food packaging sector.