S. Shiragami et al., DIRECT SURVEY OF REDOX-ACTIVE COMPOUNDS IN SESAME OIL BY CYCLIC VOLTAMMETRY - STUDIES ON SESAMINOL, SESAMOL AND HYDROXYHYDROQUINONE IN NUJOL, Journal of electroanalytical chemistry [1992], 379(1-2), 1994, pp. 315-319
The redox behaviour of compounds in sesame oil was investigated direct
ly by cyclic voltammetry (CV) in 1 M sulfuric acid. The oil was used a
s a pasting material for a carbon paste electrode (CPE). CV curves mea
sured 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 sesa
mol. Electrochemical oxidation of sesaminol and sesamol in 1 M sulfuri
c acid took place at the methylenedioxy and para-hydroxy groups, affor
ding substituted and unsubstituted hydroxybenzoquinones. Mechanisms fo
r the electrochemical reactions are proposed on the basis of the behav
iour of model compounds.