© 2022 IJRAR December 2022, Volume 9, Issue 4 www.ijrar.org (E-ISSN 2348-1269, P- ISSN 2349-5138) IJRAR22D2578 International Journal of Research and Analytical Reviews (IJRAR) www.ijrar.org 637 REVIEW ON BIO POLYMERS IN FOOD TECHNOLOGY 1 Seerla Venkata Priyanka, 2 P. Akhila Swathanthra, 3 Bandari Manjula 1,2,3 Department of Chemical Engineering, SV University College of Engineering, SV University, Tirupati Abstract: Food packing is one of the techniques for preserving food from contamination and environmental risks. Plastics, ceramics, glass, nanomaterials, and other materials are commonly utilized in food packaging. Polymers are a rapidly expanding field with a wide range of applications. Polymer packaging extends the shelf life of food while still preserving its quality. However, the concept of biopolymers was established due to a few polymers' non-renewable properties and incapacity to biodegrade. Biopolymers are commonly utilized for food packaging due to their ability to degrade and the fact that they are compostable, robust, and flexible. Biopolymers have a molecular structure and physical properties that are similar to those of conventional plastics. They don't react withfood and are mostly composed of cellulose, starch, sugarcane waste, and banana peels, all of which have little orno environmental impact. The major focus of this article is to discuss the numerous bio polymer applications in food packaging. Key words: Food packing, biopolymers, food packaging, plastics, preservation Abbreviations: P(3HB)–Poly - (R)-3-hydroxybutyrate, PLA – Polylactic acid, PHA–Polyhydroxyalkanoates 1. INTRODUCTION Few centuries ago, going to history there was no usage of plastic for any purpose but as time passed and with the rapid growth of population and industrialization the growth of plastic got increased. The usage of plastic increased to the extent of degrading environment. Plastic is mainly used in packaging [1]. Plastics are derived from carbon,hydrogen, silicon, phosphorus also plastics can be classified into 2 types mainly thermoplastics and thermosetting, based on their heating capacities [2]. In present day plastics are derived from fossil petrochemicals. Plastics degrade the soil fertility and in long run leads death of animals when they get accumulated in soil as they won’t decompose due to its resistivity towards biodegradation [3]. As plastic is non – biodegradable the increase in concern towards environment as made us derive a new technique or material for packaging. A fresh and new methods are adapted by using biodegradable or natural materials like vegetable oils, cellulose, starch etc… [4]. As biodegradable materials are used this kind of plastics are known as bioplastics. The approach of using bioplastics decreases total CO2 balances mainly while producing and recycling. Studies also tell that CO2 emission and absorption is balanced. These are widely used in agriculture, food industries, sanitation. The hike in price of petrochemicals and the poor quality of bioplastics when compared to synthetic plastics made the researchers to think of an alternative [5]. The main concerns while packaging is food safety, durability, non – toxicity. While manufacturing the material the other concerns are it should be biodegradable and then cost effective. Bio polymersare widely used in drug transportation, medical, food packing, emulsions because of its structure, bio compatibilityand bio degradation [6], [7]. Biopolymers are broadly classified into three types as shown in figure 1. Figure 1: Classification of biopolymers