Sensor-based kit to check the quality of packaged dairy products: The Tribune India


Parveen Arora

Tribune press service

Karnal, October 3

In an effort to determine the quality of packaged dairy products from the consumer side without opening the package, scientists at the National Dairy Research Institute (NDRI) developed a color-based sensor kit to check the quality of dairy products.

According to scientists, the kit has indicators of different colors, which shows the quality. If the color of the label is yellow, it indicates a fresh product, and if it turns dark brown, it reflects a risk of consumption. If it has an orange tint, it means it’s still safe to eat.

The technique was developed and standardized at the Dairy Technology Division of NDRI and is currently being tested for market readiness. Scientists claim that the kit will provide consumers with a simple solution to know the real-time quality of packaged dairy products such as khoa and dahi by looking at the color of the indicator.

After efforts of more than three years, these indicators were developed by a group of scientists including Dr P Narender Raju, Principal Scientist and supported by Dr AK Singh, Principal Scientist and Chief, Dr Rajan Sharma, Principal Scientist (Chemistry dairy) and scientist Dr. Sangita Ganguly, as well as academics including Rakesh Kumar Raman, Karpurapu Uma and Raj Suwalka, to address the problem of spoilage of packaged dairy products.

“Sometimes people complain about the spoilage of packaged dairy products even before the expiration date. This could be due to poor supply chain management and poor hygiene. Such problems can be solved if the customer has an informed choice through simple solutions such as visual color-based indicators on the package, in which the indicator displays a fresh color of a product while changing to another color upon deterioration. of the packaged product, ”said Dr MS Chauhan, Director of NDRI.

This can effectively complement “best before” or “expiration date” printouts and give consumers an informed choice, he added. “This smart tool will be of tremendous benefit to customers and the brand image of manufacturers can be enhanced. There is a great opportunity for startups to push this technology further into the market, ”said Dr Raju.

About the operation, Dr Raju said that the developed sensor will be integrated inside the package. As the deterioration progresses, it will manifest itself as changes in odor. The odor changes will be detected by the sensor and in turn will communicate in the form of visible color changes and ultimately the product’s fitness for consumption.

Colors indicate food quality

According to scientists, the kit has indicators in different colors, which shows the quality. If the color of the label is yellow, it indicates a fresh product, and if it turns dark brown, it reflects a risk for consumption. If it has an orange tint, it means it’s still safe to eat.

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