Titik Dwi Sulistyati, Sudarminto Setyo Yuwono, Endang Yuli Herawati, Soemarno
Mangrove that can filter and reduce the level of heavy metal pollution in marine waters is Avicennia marina (api-api) by means of accumulating the heavy metals (absorption and storage in the organs of leaves, roots and stems). Avicennia marina fruit has been used as traditional food. But it grow on mangrove which is highly polluted. This research aims to determine (1) the effect of lime soaking time on the reduction of Pb content in Avicennia marina flour and (2) the soaking duration in lime for Avicennia marina fruit flour consumption safety. The toxicity and lethal properties of PB can be eliminated by the addition of lime solution. The effect of adding organic acids such as lime (Citrus aurantifolia) with different soaking time on the reduction of Pb level contained in Avicennia marina fruit flour is studied. The results show that the longer the soaking time in lime, the higher the Pb heavy metal reduction. The highest Pb reduction 0,27 ppm (85%) was shown at 240 minutes soaking in lime while the contents of protein stood at 2.81% and of tannin at 344 ppm.
Fisheries Processing Technology, University of Brawijaya, Malang, Indonesia; Agricultural Processing Technology, University of Brawijaya, Malang, Indonesia; Aquatic Reseource Management, University of Brawijaya, Malang, Indonesia; University of Brawijaya, Malang, Indonesia
