IIT MADRAS DEVELOPS POCKET FRIENDLY DEIVICE TO DETECT MILK ADULTERATION

IIT Madras Researchers develop pocket-friendly device to detect milk adulteration in 30 seconds "

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• Researchers at the Indian Institute of Technology (IIT) Madras have developed a pocket-friendly device that can detect milk adulteration in just 30 seconds.  a three-dimensional (3D) paper-based portable device that can detect adulteration in milk within 30 seconds. The test could be even performed at home.

 

•  Milk adulteration is a widespread problem in India. According to a report by the Food Safety and Standards Authority of India (FSSAI), nearly 40% of the milk in the country is adulterated. Adulterants such as water, starch, urea, and detergent are added to milk to increase its quantity and make it more profitable. These adulterants can be harmful to human health and can cause a range of health problems, including food poisoning, kidney damage, and even cancer.                                                                                                                                                                It can detect multiple substances commonly used as adulterating agents including Urea, detergents, soap, starch, hydrogen peroxide, sodium-hydrogen-carbonate and salt, among others.                     

•  Unlike conventional laboratory-based methods to test the purity of milk, which are both expensive and time-consuming, this new technology is affordable and could also be used to test other liquids such as water, fresh juices, and milkshakes for traces of adulteration. Only a millilitre of any liquid would be as a sample to test for adulterants.       

 

• Elaborating on the functioning of this paper-based device, Dr. Pallab Sinha Mahapatra, Department of Mechanical Engineering, IIT Madras, said, "The 3D paper-based microfluidic device is made up of a top and bottom cover and a sandwich structure middle layer.

 

• This 3D design works well for transporting   denser liquids at a consistent speed. The paper is treated with reagents and is let to dry. Both paper layers are adhered to both  sides of the support after drying, and the covers adhere with double-sided tape. Whatman filter paper grade 4 is used in this  design, which aids liquid flow and allows for the storage of more    reagents."      

•  Dr. Pallab Sinha Mahapatra added, "All the reagents are dissolved either in distilled water or in ethanol, depending upon their solubility. Using colorimetric detection techniques, all the adulterants are detected in different liquid samples. It is inferred from the investigation that the reagent only reacts with the specific adulterant in this method and not with any milk ingredients. Hence, this analytical tool can help to monitor liquid food safety and thereby increases the traceability of tainted milk in remote areas of developing countries."

          Milk is one of the most vital foods important to lead a healthy lifestyle and yet is    the most adulterated food item in the world.   

• The adulteration of milk is a growing menace, especially in developing countries like India, Pakistan, China, and Brazil. Consumption of adulterated milk could cause medical complications such as kidney problems, infant death, gastrointestinal complications, Diarrhoea, and even cancer.