Direct survey of redox active compounds in sesame oil by cyclic voltammetry—studies on sesaminol, sesamol and hydroxyhydroquinone in nujol

The redox behaviour of compounds in sesame oil was investigated directly by cyclic voltammetry (CV) in 1 M sulfuric acid. The oil was used as a pasting material for a carbon paste electrode (CPE). CV curves measured on the CPE showed the redox behaviour of redox active compounds to be more concentra...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 1994-12, Vol.379 (1), p.315-319
Main Authors: Shiragami, Shizuno, Kim, Ok-Sun, Kusuda, Kousuke
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cyclic voltammetry
Fat industries
Food industries
Fundamental and applied biological sciences. Psychology
Redox
Sesame oil
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Summary:The redox behaviour of compounds in sesame oil was investigated directly by cyclic voltammetry (CV) in 1 M sulfuric acid. The oil was used as a pasting material for a carbon paste electrode (CPE). CV curves measured on the CPE showed the redox behaviour of redox active compounds to be more concentrated than ca. 0.01%. The characteristic CV curve of sesame oil has been attributed to the reactions of sesaminol and sesamol. Electrochemical oxidation of sesaminol and sesamol in 1 M sulfuric acid took place at the methylenedioxy and para-hydroxy groups, affording substituted and unsubstituted hydroxybenzoquinones. Mechanisms for the electrochemical reactions are proposed on the basis of the behaviour of model compounds.
ISSN:1572-6657
1873-2569
DOI:10.1016/0022-0728(94)87153-1