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Antioxidante e inibidor da corrosão de Ptychotis verticillata

Antioxidante e inibidor da corrosão de Ptychotis verticillata

Abdelhamid Bouyanzer / Belkheir Hammouti / El Mokhtar El Ouariachi

60,26 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786209465543
60,26 €
IVA incluido
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Sobre IBD

O objetivo deste estudo foi caracterizar a composição química do óleo essencial e dos extratos de Ptychotis verticillata. As atividades antioxidantes desta espécie também foram avaliadas para sugeri-la como uma nova fonte potencial de antioxidantes naturais. A análise da composição química do óleo essencial de P. verticillata do Marrocos foi realizada utilizando GC e GC-MS. O óleo era dominado por compostos fenólicos (48,0%), com carvacrol (44,6%) e timol (3,4%) como os principais compostos. Os fenólicos vegetais constituem um dos principais grupos de componentes que atuam como terminadores de radicais livres antioxidantes primários. As quantidades totais de fenólicos e flavonóides nos extratos solventes (éter dietílico e acetato de etilo) foram determinadas espectrometricamente. Além disso, as atividades antioxidantes do óleo essencial e dos extratos foram determinadas utilizando um sistema de teste DPPH. A atividade de eliminação de DPPH dos extratos aumentou na ordem acetato de etilo > ácido ascórbico > éter dietílico > óleo essencial. Foi observada uma relação entre o potencial de atividade antioxidante e os níveis totais de fenólicos e flavonóides do extrato.

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