Recovery of Belida Fish Bone Byproduct as a Rich Calcium Powder by Alcali Method
Belida (Chitala sp.) bone is one of the waste from amplang processing which not treated properly<br />yet until now especially in East Kalimantan. One type of the usage of this waste is processed to fish bone<br />powder as calcium source. The aim of this study was to determine the best treatment (boiling frequency)<br />to produce belida fish bone powder which the best characteristics based on highest calcium content. The<br />processing applied alkali method (used NaOH) to produce belida fish bone powder. The treatment of this<br />study was boiling frequency, i.e. P1 (once boiling), P2 (twice boiling), P3 (three times boiling), and P4 (four<br />times boiling) with 30 minutes on each boiling. Observed parameters in this study were moisture content,<br />ash content, protein content, fat content, calcium content, phosphor content, pH and whiteness. The results<br />showed that four times boiling gave the best result with the highest calcium content 31.31%. The range of<br />calcium content was 28.25%-31.31%. While the range of phosphor content was 3.95%-4.06%.<br /><br />