Bioactive compounds and antioxidant activity of essential oils of Origanum dictamnus from Mexico

AIMS Agriculture and Food

Nubia Amaya Olivas¹  Guillermo Ayala Soto¹  Cindy Villalba Bejarano¹  Miriam Zermeño Ortega¹  Leon Hernández Ochoa¹  Fabiola Sandoval Salas²  Esteban Sánchez Chávez³ 

[1] 1 Universidad Autónoma de Chihuahua, Facultad de Ciencias Químicas. Circuito Universitario, Campus Universitario 2, Chihuahua, Chihuahua, C. P. 31125, México;2 Tecnológico Nacional de México/ITS Perote, Km. 25, Carretera Federal Perote México, Col. Centro Perote, C. P. 91270, Veracruz;3 Centro o de Investigación en Alimentación y Desarrollo A. C. de Delicias, Av. Cuarta sur 3820, Fraccionamiento Vencedores del Desierto, Delicias Chihuahua, C. P. 33089, México;

关键词: origanum dictamnus;    essential oils;    harvesting time;    hydrodistillation;    gc-ms;   

DOI  :  10.3934/agrfood.2020.3.387

来源: DOAJ

【 摘 要 】

The quality and content of essential oils extracted from medicinal and culinary plants can be affected by harvesting time conditions. This study focused on the antioxidant activity and chemical composition of Origanum dictamnus essential oils under different harvesting time conditions. Samples from the same area and different harvesting times were treated by hydrodistillation. Gas Chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS) were used to determine the different compounds found in essential oils. In all the essential oil samples, the phenolic monoterpenoid Carvacrol was prevalent. Through different seasons, we could observe a relatively high yield ratio. However, the lowest and highest yield values were found in plants collected during winter and summer. These essential oils showed high level radical scavenging properties level, as exhibited in the DPPH assay. Essential oils from sample C (collected on 10/02/18) showed the highest antioxidant activity.

【 授权许可】

Unknown