![]() Robertson, in Encyclopedia of Dairy Sciences (Second Edition), 2011Īseptic packaging is the filling of a commercially sterile product into sterile containers under sterile conditions and sealing the containers so that reinfection is prevented. Steam injection is a faster process hence sometimes volatile is lost while steam infusion gives better control on the processing conditions thus decreases the chance of overheating of foods. Basically, there are two approaches of aseptic packaging: direct approach (composed of steam infusion and steam injunction) and indirect approach (comprises scrapped surface heat exchanger, plate heat exchanger, and tubular heat exchanger). ![]() This wide range of packaging materials increase proficiency and reduce the cost of the process. Apart from this, foil, metal cans, and various metal containers can be used in aseptic packaging. Paper and plastic are generally used in conventional aseptic packaging. Heat treatment, chemical application, or both can be utilized for sterilization in this process. It is highly recommended for the preservation of F&V slices, tomato paste, and fruit juices. It is process in which commercially sterilized food item is placed in a sterilized package followed by sealing under aseptic environment. Narashans Alok Sagar PHD, Sunil Pareek PhD, in Natural Remedies for Pest, Disease and Weed Control, 2020 Aseptic packagingĪseptic packaging is also a type of thermal sterilization. The design of cost-effective machines and sterilization processes of these methods are the most important tasks to be accomplished before in-line sterilization of food packaging materials and food contact surfaces. Presently, industries are trying to move away from chemical methods to new nonthermal methods such as light pulse, UV laser light, γ-rays, electron beams, and plasma discharge for the sterilization of packaging materials. Ionizing radiation is not commercially implemented in-line with aseptic packaging systems due to its high cost and nonuniform dose delivery to preformed containers. Light pulse technique appears to be an effective nonthermal method of sterilization of packaging materials and equipment surfaces in aseptic packaging systems and is being used in many commercial aseptic systems. The combination of peracetic acid with hydrogen peroxide and heat also deserves attention to the sterilization of food contact surfaces in aseptic packaging. ![]() Hot air is used as a sterilizing agent for paper-based packaging materials, while saturated steam is a preferred treatment method for sterilizing metal food contact surfaces. Dry heat sterilization is not suitable for heat-sensitive packaging materials like many plastic items. Sterilization of packaging materials using hydrogen peroxide followed by ultraviolet (UV) irradiation and heat also has been accepted for industrial application, and its application is expected to grow for aseptic processing and packaging. Hydrogen peroxide sterilization followed by hot air is the most common method used in aseptic packaging. The common methods of sterilization include chemical methods, thermal methods, and radiation methods. Sterilization of food packaging materials and food contact surfaces is indispensable in the aseptic packaging system. Bhatt, in Encyclopedia of Food and Health, 2016 AbstractĪseptic packaging is a well-accepted technique for the preservation of liquid and particulate foods.
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