UV and Pulsed Light Technology

Ultraviolet (UV) and pulsed light (PL) techniques function without generating excessive heat, hence maintaining the nutritional integrity of foods during the process of food preservation. Thermal techniques, such as pasteurization or other heat treatments, can deteriorate heat-sensitive substances such as vitamins and enzymes. UV and PL technologies significantly transform food preservation by improving both safety and shelf life while maintaining the quality of the food. These adaptable approaches can be used for various food items, including fresh produce and packaged foods. This chapter discusses the novel applications of UV and PL methods in food processing to enhance the safety, quality, and shelf life of different food products. Their substantial influence in mitigating bacterial, viral, and fungal hazards decreases the likelihood of food-borne diseases and enhances overall food safety. Furthermore, it emphasizes how these techniques preserve the nutritional content and sensory characteristics of food by minimizing the use of high temperatures, therefore prolonging the shelf life by preventing the growth of microorganisms and reducing spoiling. The chapter also looks into the difficulties of utilizing UV and PL in food processing. These obstacles encompass concerns such as the ability of light to penetrate food, determining appropriate dosage levels, designing suitable equipment, complying with regulations, and gaining acceptance from consumers.