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Anales de la Asociación Química Argentina

Print version ISSN 0365-0375

Abstract

ROLANDO, A. E.  and  GONZALEZ, M. D.. Chemical study of water extract of Argentine commercial origanum. An. Asoc. Quím. Argent. [online]. 2005, vol.93, n.4-6, pp.225-231. ISSN 0365-0375.

A chemical study was done of a water extract of Origanum x applii,"by product" of its essential oil hydrodistillation, in order to evaluate the existence and abundance of natural antioxidants as they have been reported in Lamiaceae plants. Hydroquinone and its β-glucoside, arbutin were identified as the major non acidic phenolic compounds, while in an acidic fraction, rosmarinic acid was isolated in, at least, 0.8 % yield (in dry leaf basis) of this extract in the separation conditions, together with 3,4- dihydroybenzoic acid, caffeic acid and acetoacetic acid among other minor compounds. This results along with the estimation of a good antioxidant activity suggest that the extract can be used as source of natural antioxidants and therefore the economical value of this local origanum cropping could be improved and diversified in Argentina.

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