Eggs - nature's composite material
Eggs are a popular food in Germany. Every year germans consume around 236 eggs per capita (source: Statista). And that doesn't include eggs used by the food industry. In 2019 appx. 15 billion eggs were produced in Germany (source: Statista). But that doesn't even cover our total needs, imports e.g. from the Netherlands are necessary. And what is the supposed waste of an egg? The eggshell. Popular with (hobby) gardeners as fertilizer, 15 billion eggshells are a bit of a good thing. So what do you do with the big rest?
Separating eggs differently
Not only housewives and cooks know that an eggshell consists roughly of two components: the hard shell and a soft, inner membrane. That's what's interesting about it - for the cosmetics and pharmaceutical industries and for machines from TRENNSO-TECHNIK. Because this is where our expertise in cutting and sorting this composite material comes into play. For further use, the shell must be separated from the membrane.
What can an eggshell membrane do?
It's thin, inconspicuous, white and likes to stick to your finger at breakfast. But is the eggshell membrane also useful? Analyzes show that this protein-rich membrane contains high-quality ingredients for the cosmetics and pharmaceuticals industries. It is therefore a sought-after source of hyaluronic acid, chondroitin and collagen. These ingredients promote collagen formation and cartilage function, thus supporting our joints and other body functions that are subject to constant breakdown. A clean extraction of the eggshell membrane therefore is a goal.
Eggshell: the battery of the future?
And what about the eggshell? In addition to the use as fertilizer or limited fun, seasonal decorative items, according to a promising study, the eggshell may soon hit the big time. In search of new sources for environmentally friendly battery technology, the Helmholtz Institute in Ulm used eggshells for the first time as an electrode for energy storage. Whole, ground eggshells resulted in a conductive material that gives hope for an inexpensive lithium-ion capacitor. Of course, more research is needed, but a cornerstone has been laid. Source: See end of text