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Revista Cubana de Plantas Medicinales

versão On-line ISSN 1028-4796

Resumo

JARAMILLO, Beatriz E; DUARTE, Edisson  e  MARTELO, Irina. Volatile chemical composition of the essential oil from colombian Eryngium foetidum L. and determination of its antioxidant activity. Rev Cubana Plant Med [online]. 2011, vol.16, n.2, pp.140-150. ISSN 1028-4796.

Introduction: culantro (Eryngium foetidum L., Apiaceae) is a herb native to Tropical America and the West Indies. Although widely used in dishes throughout the Caribbean, Latin America, and the Far East. The herb is reportedly rich in calcium, iron, carotene, and riboflavin and its harvested leaves are widely used as a food flavoring and seasoning herb for meat and many other foods. Their medicinal values include its use as a tea for flu, diabetes, constipation, and fevers. One of its most popular uses is in chutneys as an appetite stimulant. Species of E. foetidum from several countries have shown a variable composition of its essential oil, particularly, in their leaves. Objective: to establish the volatile chemical composition of the essential oil obtained from fresh leaves and stems of E. foetidum and to evaluate its antioxidant activity. Methods: the essential oil was isolated by hydrodistillation. The volatile chemical composition was analyzed by Gas Chromatography coupled to flame ionization detector (GC-FID) and Mass Spectrometry (GC-MS). The antioxidant activity was determined using the test radical DPPH decoloration. (2,2-diphenyl-1-picryl hidrazyl). Results: the essential oil from E. foetidum showed a high percentage of aliphatic aldehydes (E-2-dodecenal, 5-dodecene, tetradecanal, tetradecenal) and aromatic (2,3,5-trimethylbenzaldehyde, trimethylphenol). The antioxidant activity was expressed as percentage inhibition of DPPH. radical (89.39 %). Conclusions: in the essential oil from Colombian E. foetidum predominant aliphatic aldehydes and aromatic compounds. The DPPH test showed that AE has antioxidant capacity, this makes it an important source of natural antioxidants.

Palavras-chave : Eryngium foetidum L; essential oils; Apiaceae; gas; chromatography; natural antioxidant.

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