Bovine submaxillary mucin coatings
Bovine submaxillary mucin (BSM) coatings are a surface treatment provided to biomaterials intended to reduce the growth of disadvantageous bacteria and fungi such as S. epidermidis, E. coli, and Candida albicans. BSM is a substance extracted from the fresh salivary glands of cows.
Source: Wikipedia — Bovine submaxillary mucin coatings (CC BY-SA 4.0)