Plasma, the fourth state of matter, is under wide evaluation for the preservation of highly perishable foods, including milk and milk products. Cold plasma (CP) techniques have been promoted as a novel nonthermal technology for the preservation of milk and milk products. Apart from maintaining the nutritive value, CP also inactivates microorganisms without any chances of developing resistance. Cold plasma was also found to deactivate enzymes that are responsible for browning (colour change) reactions and generation of an off flavour. This review will describe the action of CP and its effect on the nutritional quality of milk and milk products.

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