Tracer studies of cholesterol degradation induced by ionized gases

✍ Scribed by Leon Sanche; Johan E. Van Lier

• Book ID: 103041384
• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 655 KB
• Volume: 16
• Category: Article
• ISSN: 0009-3084
• DOI: 10.1016/0009-3084(76)90018-9

✦ Synopsis

Multiple molecular layers of cholesterol4-C 14 were bombarded in an ultra high vacuum system with various excited molecular, ionic and atomic species derived from oxygen, methane and carbon monoxide. The degradation products were analyzed by thin layer chromatography followed by autoradiography and the decomposition patterns werc compared will1 those obtained from the autoxidation of cholesterol. Bombardment with excited and ionized species derived from both molecular oxygen and carbon monoxide leads to a number of known polar cholesterol oxidation products, similar to those formed during the natural oxidation of cholesterol. In contrast, species derived from methane lead only to the formation of products less polar than cholesterol with none of the established autoxidation products at detectable levels.