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Chemical composition, antioxidant and antimicrobial activities of essential oil from the aerial parts of Chuquiraga arcuataHarling grown in the highlands of Ecuador / Composición química, actividades antioxidantes y antimicrobianas del aceite esencial de las partes aéreas de Chuquiraga arcuataHarling cultivado en las tierras altas del Ecuador
Moncayo Molina, Luis; Pino, Jorge A; Spengler, Iraida; Moncayo Rivera, Christian M; Rojas Molina, Jaime O.
  • Moncayo Molina, Luis; Universidad Católica de Cuenca. Cuenca. EC
  • Pino, Jorge A; Food Industry Research Institute. Havana. CU
  • Spengler, Iraida; University of Havana. Faculty of Chemistry. Center for Natural Products Research. CU
  • Moncayo Rivera, Christian M; Universidad Católica de Cuenca. Cuenca. EC
  • Rojas Molina, Jaime O; Universidad Técnica de Cotopaxi. EC
Bol. latinoam. Caribe plantas med. aromát ; 23(4): 636-644, jul. 2024. graf, tab
Article in English | LILACS | ID: biblio-1538072
ABSTRACT
Thechemical composition, antioxidant and antimicrobial activities of the essential oil from aerial parts (leaves and flowers) of Chuquiraga arcuataHarling grown in the Ecuadorian Andes were studied. One hundred and twenty-six compounds were identified in the essential oil. Monoterpene hydrocarbons (45.8%) and oxygenated monoterpenes (44.1%) had the major percentages. The most abundant compounds were camphor (21.6%), myrcene (19.5%), and 1,8-cineole (13.4%). Antioxidant activity was examined using DPPH, ABTS,and FRAP assays. The essential oil had a moderate scavenging effect and reduction of ferric ion capacity through FRAP assay. Antimicrobial activity of the essential oil was observed against four pathogenic bacteria and a fungus. The essential oil exhibited activity against all microorganism strains under test, particularly against Candida albicansand Staphylococcus aureuswith MICs of 2.43-12.10 µg/mL.
RESUMEN
Se estudió la composición química, actividades antioxidantes y antimicrobianas del aceite esencial procedente de las partes aérea (hojas y flores) de Chuquiraga arcuataHarling cultivadas en los Andes ecuatorianos. Se identificaron 126 compuestos en el aceite esencial. Los hidrocarburos monoterpénicos (45,8%) y los monoterpenos oxigenados (44,1%) tuvieron el mayor porcentaje. Los compuestos más abundantes fueron alcanfor (21,6%), mirceno (19,5%) y 1,8-cineol (13,4%). La actividadantioxidante se examinó mediante ensayos DPPH, ABTS y FRAP. El aceite esencial tuvo un efecto eliminador moderado y una reducción de la capacidad de iones férricos mediante el ensayo FRAP. Se observó actividad antimicrobiana del aceite esencial contra cuatro bacterias y un hongo patógenos. El aceite esencial mostró actividad contra todas las cepas de microorganismos bajo prueba, particularmente contra Candida albicansy Staphylococcus aureuscon CMI de 2,43-12,10 µg/mL.
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Full text: Available Index: LILACS (Americas) Main subject: Oils, Volatile / Plant Extracts / Antioxidants Country/Region as subject: South America / Ecuador Language: English Journal: Bol. latinoam. Caribe plantas med. aromát Journal subject: Botany / Medicine / Plantas Medicinais / Terapias Complementares Year: 2024 Type: Article Affiliation country: Cuba / Ecuador Institution/Affiliation country: Food Industry Research Institute/CU / Universidad Católica de Cuenca/EC / Universidad Técnica de Cotopaxi/EC / University of Havana/CU

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Full text: Available Index: LILACS (Americas) Main subject: Oils, Volatile / Plant Extracts / Antioxidants Country/Region as subject: South America / Ecuador Language: English Journal: Bol. latinoam. Caribe plantas med. aromát Journal subject: Botany / Medicine / Plantas Medicinais / Terapias Complementares Year: 2024 Type: Article Affiliation country: Cuba / Ecuador Institution/Affiliation country: Food Industry Research Institute/CU / Universidad Católica de Cuenca/EC / Universidad Técnica de Cotopaxi/EC / University of Havana/CU