Design strategies and recent advances in utilisation of solar energy for pasteurisation

Abstract

Use of sustainable sources of energy is on the rise due to depletable nature of the conventional sources of energy generation. Renewable sources of energy such as wind, biomass, solar energy etc. are some of the most extensively available non-conventional source of energy. Pasteurisation refers to the phenomenon of mild thermal treatment to liquids or foods to eliminate the most resistant pathogenic bacteria. As such, the primary aim of this paper is to discuss about solar pasteurisation as an alternative to conventional pasteurisation and examine various research works on solar pasteurisation to achieve a solution for sustainable development. Various coatings’ materials and components used in the manufacturing of solar pasteurisation setup have been discussed with emphasis on increasing efficiency. Results reveal that use of PV/T support and certain design modifications leads to the reduction in the total pasteurisation time of raw milk.