Proses pembuatan produk emulsi kaya β-karoten dari minyak sawit merah dengan high pressure homogonizer

Abstract

Research on emulsion making from red palm oil was undertaken by optimizing the mixing process and pressure homogenization. Objective of this research was to find a best processing condition in the emulsion product making. The stages of emulsion making consisted of mixing process, homogenization process, and product analyses. The mixing process conditions were (a). mixer's speed, i.e., 2499.0, 2646.0, 2853.0 and 3167.0 rpm; (b). mixing time, i.e., 1.0, 2.0, and 3.0 minutes. The single stage homogenization pressures were 100, 150, 200, and 250 bar. Pressure studied in the double stage homogenization were 40, 60, and 80 bar. Quality of the emulsion drink was measured by carotene content, fluid flow characteristic, viscosity, and proximate analysis. Result indicated that the best emulsion product was resulted from a combination of 3167 rpm and 3 minutes mixing process. Further homogenization process found that a double stage homogenization with 250 bar in first stage and 80 bar in second stage resulted best in the quality emulsion. This best emulsion was characterized by the best value of emulsion stability and droplet diameter size. This product was rich in β-carotene.