Physicochemical characterization of recovered palm oil from palm oil mill effluent by progressive freezing

Abstract. Oil extraction rate (OER) is essential in measuring palm oil mills' performance and competence. One of the attempts to achieving high OER exploring possibility recovering residual from mill effluent (POME). A recent technique called progressive freezing (PF) has been proposed reclaim POME, forming a block solid system. This article focuses on evaluating quality recovered through its physicochemical characterization (free fatty acid (FFA), deterioration bleachability (DOBI), moisture content dirt analysis) before deciding subsequent usage or suitable treatment if needed. The results show that contained 25 27% free 1.01 2.02% content, 0.049 0.055 had (DOBI) between 2.3 2.7. be for recycle utilization as value-added product such biodiesel production.