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.