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With increasing consumers demand and tightening of food and environmental regulations, traditional food-processing techniques have lost their optimum performance which gave rise to new and powerful technologies. Ultrasonic is a one of the fast, versatile, emerging, and promising non-destructive green technology used in the food industry from last few years. The ultrasound is being carried out in various areas of food technology namely

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Due to the increased pollution generated from traditional petroleum‐based plastics and consistent fluctuations in fuel prices, the scientists are focusing on developing the biodegradable polymers which decompose into water and carbon dioxide thereby reducing the litter. Poly(ε‐caprolactone) (PCL) is the emerging biodegradable polymers, ideal to replace the conventional polymers due to its perfect compatibility with other polymers and miscible nature. The present chapter discusses about the chemical synthesis and characteristics of PCL in addition to focusing on the biodegradation mechanism. The potential of PCL for developing biodegradable films and bags in food processing is also highlighted in association with natural fibre, nanotechnology and active packing. This chapter provides an updated information about recent scientific reports on PCL to increase its exploration as a promising biodegradable packaging material.