The chloroperoxidase catalyzed oxidation of methyl phenyl sulfide to (R)-methyl phenyl sulfoxide was investigated, both in batch and membrane reactors, using as oxidant H 2 O 2 , or O 2 in the presence of either dihydroxyfumaric acid or ascorbic acid. The effects of pH and nature and concentration o
Oscillatory behavior during the oxygen oxidation of ascorbic acid
โ Scribed by Jack Young; Boris Franzus; Thomas T.-S. Huang
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 514 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
Abstract
The oscillatory phenomenon was observed in aqueous solution during the oxidation of ascorbic acid by oxygen. Even though the exact number and amplitude of the oscillations could not be exactly duplicated for each and every run, such factors as temperature, concentration of ascorbic acid, cupric ions, and pH affecting the oscillatory behavior were studied, and those regions where oscillations occurred were delineated. A mechanism consistent with the oscillatory behavior is proposed and discussed.
๐ SIMILAR VOLUMES
Ascorbic acid (AA) has both antioxidant and proox-results in a statistically significant increase in both idant activities. However, there have not been any the cytotoxic and mutagenic effects of oxidative studies to elucidate the molecular mechanisms that stress when compared to cell populations ex
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