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Related Concept Videos

Biosynthesis of Polysaccharides01:26

Biosynthesis of Polysaccharides

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Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
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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 polymer...
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Recent Advances in Polysaccharide-Based Edible Films Using Natural Extracts and Their Potential Food Applications.

Preiti Deol1, Mitali Madhumita1, Piyush Verma1

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Summary
This summary is machine-generated.

Edible films from natural polymers like chitosan and starch offer eco-friendly food packaging solutions. Incorporating agro-waste extracts enhances film properties, extending shelf life and improving food quality.

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Area of Science:

  • Food Science and Technology
  • Materials Science
  • Environmental Science

Background:

  • Conventional food packaging relies on synthetic materials, posing environmental concerns.
  • Agro-industrial waste (rice husks, fruit peels) can be repurposed as additives for edible films.
  • Polysaccharide-based edible films (chitosan, alginate, cellulose, starch) show promise for food preservation.

Purpose of the Study:

  • To review polysaccharide-based edible films for food packaging applications.
  • To explore the use of natural extracts and agro-waste valorization.
  • To discuss methods for enhancing film performance and future directions.

Main Methods:

  • Review of literature on polysaccharide-based edible films.
  • Analysis of physicochemical properties and functional features.
  • Investigation of preparation methods and enhancement strategies.

Main Results:

  • Edible films enhance food quality and extend shelf life by inhibiting oxidation and microbial growth.
  • Incorporating lipids, proteins, essential oils, and nanomaterials improves film functionality.
  • Polysaccharide-based films offer a sustainable alternative to synthetic packaging.

Conclusions:

  • Polysaccharide-based edible films are effective for food preservation and quality enhancement.
  • Further research into composite structures and intelligent packaging systems is warranted.
  • Valorization of agro-waste provides a sustainable source for advanced food packaging materials.