interior wall coating lithopone factory

Overall, wholesale superfine calcium carbonate is a valuable mineral that offers a wide range of benefits for manufacturers in various industries. By considering the price and quality of the product, you can ensure that you are getting the best value for your money. With its high purity, brightness, and versatility, superfine calcium carbonate is a cost-effective solution for enhancing the quality of your products and meeting the demands of your customers.

...

The gastrointestinal tract is a complex barrier/exchange system, and is the most important route by which macromolecules can enter the body. The main absorption takes place through villi and microvilli of the epithelium of the small and large intestines, which have an overall surface of about 200 m2. Already in 1922, it was recognized by Kumagai, that particles can translocate from the lumen of the intestinal tract via aggregation of intestinal lymphatic tissue (Peyer’s patch, containing M-cells (phagocytic enterocytes)). Uptake can also occur via the normal intestinal enterocytes. Solid particles, once in the sub-mucosal tissue, are able to enter both the lymphatic and blood circulation.

...