Microwave-induced thermal sterilization- A review on history, technical progress, advantages and challenges as compared to the conventional methods

Publication date: March 2020Source: Trends in Food Science & Technology, Volume 97Author(s): Aswathi Soni, Jeremy Smith, Abby Thompson, Gale BrightwellAbstractMicrowave-assisted thermal sterilizsation (MATS) technology combines the energy from microwaves of long-wavelength (915 MHz) along with hot water immersion to sterilize food in polymeric packages. MATS is presumed to be a successful sterilization method to eliminate pathogens including bacterial spores, improve the shelf-life of food products while the nutritive qualities and flavours are not affected (within consumer acceptance). From the regulatory point of view, it is a thermal technology for pre-packaged commercial sterilization of homogeneous and nonhomogeneous foods as accepted by the Food and Drug Administration (FDA).Scope and approachThis review covers the technical progress, advantages and challenges associated with MATS technology with a comparison to conventional methods and its potential in the food industry. This comprehensive background study is worth considering while developing protocols and validation assays for MATS.Key findingsMATS is postulated to not only eliminate the edge-heating issues, but it also reduces the heat exposure time to minimize the effect on heat-sensitive components while achieving maximum microbial inactivation. MATS technology has promising potentials and has been expected to have comparable results if not better to retorting in sterilization while ensuring better sensory qualit...
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research