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Antioxidant activity of six essential oils and its molecules in Ecuadorian Andean medicinal plants

TMR Modern Herbal Medicine 2023年第3期6卷 1-9页

作者： Paco Noriega Edison Díaz Ivana Villegas Karla Pozo Priscila Guerrero Pablo Guerra Christian Larenas Group of Research and Development in Sciences Applied to Biological Resources Universidad Politécnica SalesianaAvenida 12 de Octubre N 2422 y WilsonQuito 170109Ecuador Master course in Natural Pharmaceutical Products Universidad Politécnica SalesianaAvenida 12 de Octubre N 2422 y WilsonQuito 170109Ecuador Symrise AG.Mühlenfeldstraße Holzminden 137603 Germany

Background:This research values the antioxidant activity and its responsible molecules in six essential oils from medicinal plants in the Ecuadorian ***:The chemical composition of essential oils was determined using gas chromatography coupled mass *** evaluated the antioxidant activity of essential oils was use tree spectrophotometric methods:diphenyl-1-picrylhydrazyl(DPPH),2,2’-Azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)(ABTS)andβ-Carotene bleaching *** essential oils with good activity were determined the responsible molecules using the Bioautographic HP-TLC-DPPH ***:The scavenging capacity of the radicals was assessed with DPPH and ABTS methods,the best results were found in the oils of *** IC_(50) DPPH 2.80 mg/ml and IC_(50) ABTS 0.205 mg/mL and in *** IC_(50) DPPH 12.972 mg/mL and IC_(50) ABTS 0.321 mg/mL,the results were compared with a pattern of natural reference in this case,the essential oil of *** IC_(50) DPPH 0.474 mg/mL and IC_(50) ABTS 0.272 mg/*** evaluation of the antioxidant activity was determined by theβ-carotene bleaching test,the most notable activity results were from *** IC_(50)0.119 mg/mL,*** IC_(50)0.062 mg/mL and *** IC_(50)0,064 mg/*** bioautography revealed the active molecules antioxidants in oils for *** were thymol acetate(7.73%)and carvacrol acetate(24.52%),for *** wasγ-muurolene(2.68%),and for *** Z-caryophyllene(2.99%),aristolochene(0.11%)and cis-cadin-4-en-7-ol(4.11%).Conclusion:The results of antioxidant activity shown in descending order that the essential oils of:***,*** and ***,are those with the highest activity using the DPPH and ABTS ***β-Carotene bleaching test method confirms the 3 oils as the most active in the following order:***,*** and *** antioxidant bioautographic study identified the molecules responsible for the activity in three essential oils with

关键词： Andean essential oils minthostachys mollis antioxidant activity bioautography antioxidant

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