Scientists develop carbon-based non-toxic and reusable wrapper to increase shelf-life of fruits

Source: PIB

What is the News?

Indian Scientists have developed a composite paper made of carbon (graphene oxide) loaded with preservatives that can be used as wrappers to help extend shelf life of fruits. 

What is the present system?
  • Fruits are highly perishable and about 50% of the produce gets wasted, causing huge losses. 
  • Conventional preservation relies on coating the fruits with preservatives like resin, wax, or edible polymer.
  • However, this current preservative dipping technology leads to preservatives being absorbed by the fruit causing chronic toxicity to the consumers.
What did the scientists develop?
  • Indian Scientists have developed a graphene oxide carbon wrapper that releases the preservative only when needed
  • The wrapper is non-toxic and can also be reused which is not possible with the present technology.

About Graphene:

  • Graphene is a single layer (monolayer) of carbon atoms arranged in a honeycomb-like pattern. 
  • Graphene is considered to be the world’s thinnest, strongest and most conductive material – of both electricity and heat. 
  • Uses: It can be used in applications ranging from miniaturised electronics to biomedical devices like computers, solar panels, batteries, sensors and other devices.
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