Cockle shell, Biotechnology, Chemistry, Food Science, Crab shell, Chicken fat, Agriculture, Transesterification, Industrial Chemistry/Chemical Engineering, Biodiesel, Biomaterials, Methyl ester, Lime, Esters, Catalysis, Catalysts, Fatty acids, Biodiesel fuels, Scanning electron microscopy, Cold, Poultry, Moisture content, Oils & fats, Standard deviation, Mol...