Bacteriocin is a small molecule, produced by bacteria, that inhibits closely related strains. It is usually a peptide or a proteinâvarying sized chains of amino acids. These compounds are of interest both in studies of basic microbiology, and for the preservation of food and enhancement of human health. These toxins are produced by a wide range of bacteria. The first to be studied was that from escherichia coli, a bacterium that lives in human intestines and is frequently used in laboratory work. It produces a number of bacteriocins, with the most well-studied being the colicins.
They are present in any environment where radon is found and, like radon, cannot be detected by human senses. The earth is the source of all radon gas in our atmosphere. Uranium is a natural part of the earth's crust.Therefore, radium and radon are also naturally present (as noted above). Since uranium and radium concentrations vary throughout the earth's crust, radon concentrations will also vary.ranium is a natural part of the earth's crust. Therefore, radium and radon are also naturally present (as noted above). Since uranium and radium concentrations vary throughout the earth's crust, radon concentrations will also vary.
Radon Gas. Radon is a naturally occurring radioactive gas that comes from radium deposits in the earth's crust. If present in the soil under your home, it can get sucked into your house via the basement or crawl space. Don't panic.