Z. Jannah, H. Mubarok, F. Syamsiyah, A.A. H Putri, L. Rohmawati
We have performed research on antibacterial substance from a natural substance, one of them is calcite from shellfish (Anadara granosa) in Kenjeran Beach Surabaya. This calcite is composed of magnesium oxide using PEG 4000 (Polyethylene glycol) as a solvent and then heated at 800 °C for 30 minutes. Weight variety of calcite used was 80% wt, 85% wt, and 90 wt%. Subsequently, that composites characterized using XRD, antibacterial activity test (Escherichia coli and Staphylococcus aureus), and SEM. The result of antibacterial assay shows that composite of CaCO3/MgO with 80% wt composition have the best activity inhibitory of 31,96 mm for Escherichia coli bacteria and 32.26 mm for Staphylococcus aureus bacteria. © Published under licence by IOP Publishing Ltd.
Department of Physics, Universitas Negeri Surabaya, Jl. Ketintang, Surabaya, 60231, Indonesia; Department of Biology, Universitas Negeri Surabaya, Jl. Ketintang, Surabaya, 60231, Indonesia; Department of Chemistry, Universitas Negeri Surabaya, Jl. Ketintang, Surabaya, 60231, Indonesia; Center for Materials Science Studies, Department of Physics, Universitas Negeri Surabaya, Jl. Ketintang, Surabaya, 60231, Indonesia
