IIT Madras: Researchers Develop Anti-Bacterial, Biodegradable Food wrapping Material, Check Details Here

IIT Madras researchers have developed a food wrapping material which is anti-bacterial and biodegradable in nature. The team of researchers have informed that their product can tackle two major problems - prevent contamination of packaged food by bacteria as well as reduce the plastic waste generated in the environment when disposing of the wrappers.

The team of IIT Madras Researchers have filed a patent for the wrapper. Mukesh Doble, Professor, IIT's Department of Biotechnology has stated that the anti-bacterial compound should be safe for consumption as it is approved by the authorities and does not cause any toxicity.

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"Our idea was to design a food wrap that will address two major issues--solid waste and food contamination during storage due to bacterial growth. We have developed a biodegradable wrapping material with in-built anti-bacterial activity to prevent bacterial growth in stored food,” said the Professor. 

"The wrapping material we have developed also degrades at various environmental conditions with the rate of degradation varying from 4 to 98 per cent in 21 days. The wrapping material degraded rapidly in moist conditions when compared to dry ones. Hence, our wrapper is eco-friendly and can play a major role in plastic waste reduction," Prof Doble added.

The films developed by researchers were made with polymeric blends containing starch, polyvinyl alcohol, cyclic beta glycans (CBG). The composition was optimised to achieve the best film with a smooth texture, flexibility, uniform thickness and good clarity.

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Observation: 99.99% per cent Reduction in Bacterial Colonies in The Food Samples

A research scholar at IIT Madras has informed that their anti-bacterial coated polymer wrapper was used for wrapping paneer, meat and chicken and its performance was tested.

In the observation, Samples were placed in 4 degrees Celsius and 30 degrees Celsius for 10 days and tested for the effect of the coating on reducing the bacterial growth with respect to the uncoated wrapper.

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"Our study found that 99.999 per cent reduction in bacterial colonies was observed in food samples wrapped with our anti-bacterial wrap and stored at 30 degrees Celsius for 10 days when compared with a plain wrapper. This study also suggests that our anti-microbial wrapper can, to some extent overcome, the reduced availability of cold storage units. Paneer is known to have a very low shelf life (less than 7 days) and hence extending its shelf life is a major advantage," said Ms Kumari.

Further, the researchers stated that it was found that the wrapping material degraded at various environmental conditions with the rate of degradation varying from 4 to 98 per cent in 21 days. . The material degraded rapidly in a moist condition when compared to dry ones.

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