Global InformationEggshell membrane separation process information
Eggshell membrane separation is a recycling process to separate the protein-rich eggshell membrane from the eggshell.
Nearly 30% of the eggs consumed each year are broken and processed or powdered into foods such as cakes, mixes, mayonnaise, noodles and fast foods.[1] The US food industry generates 150,000 tons of shell waste a year.[2] The disposal methods for waste eggshells are 26.6% as fertilizer, 21.1% as animal feed ingredients, 26.3% discarded in municipal dumps, and 15.8% used in other ways.[3]
Many landfills are unwilling to take the waste because the shells and the attached membrane attract vermin. When unseparated, the calcium carbonate eggshell and protein-rich membrane have little or no value or use;[4] however, the invention of an eggshell and membrane separator has allowed for the recycling of these two products.
- ^ "Famous for Egg Waste | Penn State University". www.psu.edu. Retrieved 2023-02-01.
- ^ Hecht J: Eggshells break into collagen market. New Scientist 1999, 161:6-6.
- ^ Daengprok, Wichittra; Garnjanagoonchorn, Wunwiboon; Mine, Yoshinori (2002). "Fermented pork sausage fortified with commercial or hen eggshell calcium lactate". Meat Science. 62 (2): 199–204. doi:10.1016/S0309-1740(01)00247-9. PMID 22061412.
- ^ Wei, Ziku; Xu, Chunli; Li, Baoxin (2009). "Application of waste eggshell as low-cost solid catalyst for biodiesel production". Bioresource Technology. 100 (11): 2883–2885. doi:10.1016/j.biortech.2008.12.039. PMID 19201602.