Construction of an Ohmic Heating Apparatus and Evaluation of Electrical Conductivity of Sweet Lime Juice
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 1
Abstract
Different emerging technologies for thermal food processing were developed and today’s era demands for those technologies which result in high quality with minimum processing. Ohmic heating is the volumetric method of heating in which heat is generated internally within the food mass. This study was aimed to design a laboratory scale ohmic heating system and concluded by evaluating the behaviour of electrical conductivity of sweet lime juice with temperature. Sweet lime juice was heated on static ohmic heater at different voltages in the range of 30-60V and measurements were made at 27 to 85.7ºC after regular 2 min intervals with electrical conductivity range of 1.0933 to 3.760 S/m. Electrical conductivity shows linear relationship with temperature up to certain value of temperature and it is the critical parameter for designing of an ohmic heating apparatus.
Authors and Affiliations
Anuradha Saini, Ravish Kumar
Keywords
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