Utilization of eggshell waste in calciumfortified foods and other ...
Eggshell constituents are 94% calcium carbonate, 4% organic substances, 1% calcium phosphate, and 1% magnesium carbonate (Murakami et al., 2007). Calcium contents in the form of calcium carbonate account for about g per eggshell. So, g of eggshell powder can fulfill the daily dietary intake for adult people (Milbradt et al., 2015).