Protein and Minerals Analyses of Mangrove Crab Shells (Scylla serrata) from Merauke as a Foundation on Bio-ceramic Components

Abstract

The analyses over protein and mineral content of mangrove crab shells from Merauke had been studied and then it is presented in this paper. The methods were started by cleaning the shells from impurities, then it naturally dried for 24 hours, and then it was grounded into form of powder. The results showed that the raw powder of mangrove crab shell was contained 19.78 % of Carbon (C), 24.53 % of Oxide (O), 4.81 % of MgO, 3.98 % of P2O5 and 71,42 % of CaO. The calcined process has succeeded to decrease the carbon content. The minerals content of the crab shells after it was calcined at 1000 °C were 6.27 % of Carbon, 28.96 % of Oxide, 5.78% of MgO, 5,65 of P2O5, and 82,3% CaO. Therefore, it can be concluded that the mangrove crab shells from Merauke possess basic materials as bio ceramic.