PHOTOOXIDATION OF A REFINED PETROLEUM OIL: INHIBITION BY β-CAROTENE AND ROLE OF SINGLET OXYGEN |
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| Authors: | Richard A Larson Laura L Hunt |
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| Institution: | Stroud Water Research Center of the Academy of Natural Sciences of Philadelphia, RD 1, Box 512, Avondale, PA 19311, U.S.A. |
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| Abstract: | Abstract— β-Carotene, at concentrations  0.1 m M , inhibits the formation of hydroperoxides and other oxidation products in a refined petroleum oil exposed to Pyrex-filtered UV. The effect appears to be due to 1O2 quenching. A mechanism incorporating 1O2 and radical processes is proposed as a model for environmental photooxidation of petroleum. |
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