Antibacterial Properties of Scallop Shell Derived Calcium Hydroxide Powders

Globally increased bivalve aquaculture production results in a vast amount of by-product discharges such as scallop shells. Utilization these wastes to produce new products antibacterial agents can cooperate reduce environmental problems and provide high value-added product at lower cost. In this study, shells are heat-treated 800°, 900°, 1000°, 1100°C for 4 hours atmospheric conditions. X-ray diffraction analysis revealed that calcium carbonate is the only inorganic phase powdered Ten weeks after thermal treatment shells, hydroxide was crystalline determined by samples calcined 1000° 1100°C. At calcination temperatures, phases were co-existing samples. Scanning electron microscopy investigations depicted using starting material synthesize nanometer-sized achieved. It applied temperature has significant effect on particle size obtained phase. Antimicrobial activity uncalcined shell powders tested against Escherichia coli Staphylococcus aureus. No detected powders. However strong subjection calcination. Calcination an environmentally friendly, readily applied, low- cost approach achieve nanometer-size be used various composite systems.