HPLC Method to Assay Total Saponins in Ilex paraguariensis Aqueous Extract
نویسندگان
چکیده
Ilex paraguariensis St. Hilaire é uma espécie sul-americana da qual ramos e folhas são utilizados para o preparo de uma bebida de grande consumo em alguns países da América do Sul. A planta é conhecida como “erva-mate” em português ou “yerba-mate” em espanhol. Tendo em vista o potencial uso das saponinas como tensoativo bem como o seu potencial terapêutico, o presente trabalho propõe um método de extração e quantificação para as saponinas presentes em Ilex paraguariensis. As saponinas foram extraídas por decocção, hidrolisadas e quantificadas por CLAE e detecção em UV. A concentração de saponinas foi expressa em ácido ursólico (saponinas totais). O método cromatográfico mostrou linearidade na concentração de 13,5 a 135 μg mL. O extrato aquoso apresentou uma concentração de saponinas totais de 352 μg mL. Os resultados sugerem a possibilidade de adaptação do método para doseamento de saponinas com núcleo triterpênico em extratos de outras plantas.
منابع مشابه
Evaluation of the Antioxidant Activity and Polyphenols Content of Ilex paraguariensis (Mate) During Industrialization
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