gastric secretion. Â© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. gastric secretion Gastric juice contains the enzymes chymosin (in infants) and lipase, the inactive precursor of pepsin (pepsinogen), intrinsic factor, mucin, and hydrochloric acid.
Bisphenol A (BPA) Overview & Updates. BPA (Bisphenol A) is a chemical used in certain food contact materials and first approved by FDA in the early 1960s. In recent years, concerns have been raised about BPA's safety. In August 2008, FDA released a draft report finding that BPA remains safe in food contact materials.
BPA is a structural component in polycarbonate beverage bottles. It is also a component in metal can coatings, which protect the food from directly contacting metal surfaces. BPA has been used in food packaging since the 1960s.