Estudio Farmacognóstico y Actividad Antimicrobiana de la Violetilla (Hybanthus parviflorus)

Abstract

Hybanthus parviflorus also known as "Viletilla or Cuy chunzhulli", is used by the population of the community of San Francisco de Cunuguachay belonging to the parish of Calpi of the canton Riobamba for fever, arthritis, purgative and as an antimicrobial. The investigation of the plant material was carried out in the laboratory of natural products of the Faculty of Sciences of ESPOCH. The study began with the collection, washing of the plant with sodium hypochlorite at 10ppm, followed by drying for a week at room temperature and grinding. The plant material was subjected to different extractions using solvents of increasing polarity, starting with ether, ethanol and finally with water, to subsequently perform the phytochemical screening and its microbiological evaluation in the ethereal and hydroalcoholic extract. Quantitative determination showed a residual moisture content of 4.71%, total ash 3.53%, acid insoluble ash 1.82%, water soluble ash 0.85. The most abundant phytochemical groups found were: alkaloids, triterpenes, steroids, lactones, coumarins, phenols, tannins, reducing sugars and saponins. The activity of the ethereal and hydroalcoholic extract is null, against Staphylococcus aureus ATCC 13709, Escherichia coli ATCC 9637, Salmonella gallinarum ATCC 9184, Klebsiella pneumoniae ATCC 10031, Candida albicans ATCC 10231, Pseudomonas aeruginosa ATCC 27853.