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Related Concept Videos

Characteristics and Nomenclature of Copolymers01:24

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Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
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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...
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Updated: Jun 13, 2025

Combinatorial Synthesis of and High-throughput Protein Release from Polymer Film and Nanoparticle Libraries
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Gallic Acid Based Polymers for Food Preservation: A Review.

Gayathri Gangadharan1, Sonali Gupta1, Manas Laxman Kudipady2

  • 1Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India 576104.

ACS Omega
|September 16, 2024
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Summary
This summary is machine-generated.

Biodegradable food packaging using gallic acid (GA) offers eco-friendly solutions. GA enhances natural biopolymers with antioxidant and antimicrobial properties, preserving food quality and extending shelf life.

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Area of Science:

  • Materials Science
  • Food Science
  • Environmental Science

Background:

  • Non-biodegradable plastics in food packaging pose environmental risks.
  • Natural biopolymers (polysaccharides, proteins, polyesters) are explored for sustainable packaging.
  • Gallic acid (GA), a phenolic compound, enhances biopolymer properties.

Purpose of the Study:

  • To review the antioxidant and antibacterial capabilities of gallic acid (GA)-incorporated biodegradable food packaging.
  • To highlight GA-based active packaging as an eco-friendly alternative to conventional plastics.

Main Methods:

  • Literature review on gallic acid's properties and applications in food packaging.
  • Analysis of studies demonstrating GA's impact on food preservation.

Main Results:

  • Gallic acid exhibits potent antioxidant activity by scavenging free radicals.
  • GA demonstrates significant antimicrobial activity against various bacteria.
  • GA-based packaging inhibits lipid oxidation, enzymatic browning, and microbial growth.
  • Effectively retards ripening and extends shelf life for diverse food products (fruits, nuts, meats, fish).

Conclusions:

  • Gallic acid-incorporated biodegradable packaging is a promising sustainable solution.
  • GA enhances the functionality of biopolymer-based food packaging.
  • These active packaging systems offer effective food preservation and reduced environmental impact.