Recovery of Belida Fish Bone Byproduct as a Rich Calcium Powder by Alcali Method
AbstractBelida (Chitala sp.) bone is one of the waste from amplang processing which not treated properly
yet until now especially in East Kalimantan. One type of the usage of this waste is processed to fish bone
powder as calcium source. The aim of this study was to determine the best treatment (boiling frequency)
to produce belida fish bone powder which the best characteristics based on highest calcium content. The
processing applied alkali method (used NaOH) to produce belida fish bone powder. The treatment of this
study was boiling frequency, i.e. P1 (once boiling), P2 (twice boiling), P3 (three times boiling), and P4 (four
times boiling) with 30 minutes on each boiling. Observed parameters in this study were moisture content,
ash content, protein content, fat content, calcium content, phosphor content, pH and whiteness. The results
showed that four times boiling gave the best result with the highest calcium content 31.31%. The range of
calcium content was 28.25%-31.31%. While the range of phosphor content was 3.95%-4.06%.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.