ABSTRACT
Aseptic packaging is the principal part of aseptically manufactured food products. Unlike other conventional processing, the packaging containers must be sterilized separately with effective sterilants depending upon the filling machine, which is designed by the filler manufacturer. The sterile packages are then filled with sterile food under the sterile zone of filler in order to prevent microorganisms from contaminating the food product during filling and sealing process. Several types of packaging materials such as steal metal can, paperboard carton, plastic cup, plastic bottle, and flexible pouch can be used as aseptic packaging. There are many types of aseptic fillers based on the specific packaging system, including packaging types and sizes (retail and bulk packaging). In this chapter, current packaging materials used in today’s market with their sterilization technique and filling technology are discussed for retail products and food service. The demand for shelf-stable food has been steadily increasing over the years and it was further accelerated over the last two years due to the pandemic. The growth is mainly driven by the Asia-Pacific region and it is the largest as compared to other major regions. Europe and North America are the two other major markets for aseptically packaged food products. The packaging options and use of recycled materials, such as recycled PET and flexible packaging materials, have also made an impact on the market share for different aseptic products. However, from a sustainability perspective, there are recycling issues in the parts of the world where it is not fully established yet. As the aseptic processing and packaging technology continues to expand globally, there will be more demand on sustainable sources of packaging materials and sustainability in the manufacturing operations as well. Future needs of packaging innovation and sustainability for aseptic packaging are also reviewed.
