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Rev. bras. farmacogn ; 13(supl.1): 30-34, 2003. ilus, tab
Article in Portuguese | LILACS | ID: lil-526238

ABSTRACT

As plantas denominadas de ruibarbo sintetizam antraquinonas e taninos, que são responsáveis pelos efeitos laxante e adstringente, respectivamente. Análises da qualidade de cinco matérias-primas de ruibarbo foram realizadas a fim de detectar adulterações. As reações para antraquinonas e taninos foram positivas. Os constituintes rapônticos foram observados na amostra de Rheum palmatum (2). As medidas de cinzas totais para Rheum palmatum (2) e Ferraria cathartica estão acima do esperado. Conforme resultados, as amostras de Rheum palmatum (2) e Ferraria cathartica devem estar adulteradas.


Plants known as rhubarb synthesize anthraquinones and tannins. Theses compounds have medicinal uses as laxative and astringent, respectivity. The quality of five raw materials was analysed to detect adulterant. Anthraquinones and tannins reactions were positive. Derivatives rhapontocoside were observed in the sample of Rheum palmatum (2). Total ashes were increased to Rheum palmatum (2) and Ferraria cathartica. According to the results, samples of Rheum palmatum (2) and Ferraria cathartica shoulde are adulterated.

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