Abstract
Abstract We examined the 13C/12C and 18O/16O stable isotope ratios (δ13C, δ18O) of ascorbic acid from acerola and of synthetic origin. Although the obtained δ13C values were partially overlapping for the two species, δ18O values were higher for ascorbic acid from acerola, than values obtained for synthetic ascorbic acid. From this study, it was demonstrated that carbon and oxygen isotopic composition analysis can discriminate ascorbic acid from acerola from that of synthetic origin.
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