Optimization of Pasteurization Machine Level Settings with Heat Transfer Fluid and Pulsed Electric Field Technology Based on Randu Honey Quality Testing

Abstract

Randu honey is a type of monofloral honey produced by bees that consume nectar from randu flowers. Randu honey has a high water content because the flowering process occurs at night with high humidity. This research aims to determine the optimal parameter level settings in the pasteurization process of randu honey using a pasteurization machine regarding the parameters of heating temperature in the HTF, voltage at PEF, stirring speed in the tube, and PEF process time. Experiments were carried out using Response Surface Methodology (RSM) which was applied to determine the exact values of optimal process parameters that simultaneously compromise all responses. Based on the experimental results, the results of multi-objective optimization obtained optimal process parameters that can be applied to the machine is HTF temperature factor of 60°C, voltage at PEF 25kV, stirring speed in the tube 30 rpm, PEF process time 120 minutes.