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Related Concept Videos

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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...
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A key characteristic of life is the ability to separate the external environment from the internal space. To do this, cells have evolved semi-permeable membranes that regulate the passage of biological molecules. Additionally, the cell membrane defines a cell’s shape and interactions with the external environment. Eukaryotic cell membranes also serve to compartmentalize the internal space into organelles, including the endomembrane structures of the nucleus, endoplasmic reticulum and...
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A cell's plasma membrane demarcates the cell's borders and determines the nature of its interaction with the environment. Cells exclude certain substances, take in others, and excrete some others in controlled quantities. The plasma membrane must be flexible to allow certain cells, such as red and white blood cells, to change their shape while passing through narrow capillaries. These are the more obvious plasma membrane functions. In addition, the plasma membrane's surface carries...
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The plasma membrane is a dynamic barrier composed of lipids, proteins, and carbohydrates. It is the epicenter of many cellular processes required for cell growth and survival. Carbohydrates have unique structural and chemical properties that help the plasma membrane to carry out its functions effectively.
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Polysaccharide-Based Membranes in Food Packaging Applications.

Ana R V Ferreira1, Vítor D Alves2, Isabel M Coelhoso3

  • 1LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica 2829-516, Portugal. arf18913@campus.fct.unl.pt.

Membranes
|April 19, 2016
PubMed
Summary

This review explores biodegradable biopolymers, specifically polysaccharides, as sustainable alternatives to traditional plastics for food packaging. It highlights strategies to overcome challenges like water resistance and cost for wider commercial adoption.

Keywords:
biopolymer-derived membranesmicrobial polysaccharidespackagingpolysaccharides

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Area of Science:

  • Polymer Science
  • Materials Science
  • Food Science

Background:

  • Plastic packaging is ubiquitous but poses environmental challenges due to non-biodegradable polymer disposal.
  • Biopolymers, particularly polysaccharides, offer biodegradable alternatives with film-forming properties for food packaging.
  • Current limitations include poor water resistance, suboptimal mechanical performance, and high costs, hindering widespread adoption.

Purpose of the Study:

  • To review the application of polysaccharides in food packaging.
  • To identify strategies for overcoming the limitations of polysaccharide-based packaging.
  • To summarize commonly used polysaccharides in this field.

Main Methods:

  • Literature review of scientific publications and research articles.
  • Analysis of studies focusing on polysaccharide properties and modifications for packaging.
  • Synthesis of information on challenges and solutions in polysaccharide-based food packaging.

Main Results:

  • Polysaccharides demonstrate potential for creating attractive, biodegradable food packaging materials.
  • Several strategies exist to improve water resistance, mechanical strength, and cost-effectiveness.
  • Specific polysaccharides have been identified and utilized in various food packaging applications.

Conclusions:

  • Polysaccharides are promising candidates for sustainable food packaging, addressing environmental concerns.
  • Ongoing research and strategic modifications are crucial for commercial viability.
  • Overcoming existing drawbacks will enable wider use of these biopolymers in the packaging industry.