ABSTRACT
An ethnobotanical survey based on semistructured questionnaires among 35 farmers was carried out in two regions in Tigray, northern Ethiopia. Ethiopia is one of the poorest countries in the world with low level of medical care; therefore indigenous knowledge of medicinal plants is highly priced information and can be a good source of income to family or community. In total, 58 plant species were detected, while 48 plants, and 44 genera, belonging to 27 families have been identified as medicinal. Vernacular, as well as scientific names, plant part used, way of use and modes of preparation and application are included. Majority of plants were used for various gastrointestinal disorders, sprains treatment or to heal bronchitis, however, interesting aspects are the uses of plants to cure bilirubinemia, prostate disorders, syphylis and milk ingest disorders.
En dos regiones del Tigray (Tigré), en el norte de Etiopía se realizó un estudio etnobotánico, basado en un cuestionario semiestructurado, entre 35 agricultores. Etiopía es uno de los países más pobres del mundo con un bajo nivel de atención médica, por lo tanto, el conocimiento autóctono de las plantas medicinales es una información muy valiosa y puede ser una buena fuente de ingresos para la familia o comunidad. En total, se detectaron 85 especies de plantas, de las cuales fueron identificadas como plantas medicinales 48 especies y 44 géneros pertenecientes a 27 familias botánicas. En el estudio están incluídos los nombres vernaculares y científicos, como también parte de la planta utilizada y su forma de uso, modos de preparación y aplicación. La mayoría de las plantas se usan para el tratamiento de diversos trastornos gastrointestinales y esguinces o para curar la bronquitis; sin embargo, son interesantes los usos reportados para tratar la bilirrubinemia, dolencias de la próstata, sífilis y la intolerancia a la lactosa.
Subject(s)
Humans , Black People , Ethnobotany , Medicine, Traditional , Plants, Medicinal , Ethiopia , Surveys and QuestionnairesABSTRACT
Objective:To prepare and evaluate a herbal antioxidant face cream which is made by the ethanol extract of Nardostachys jatamansi (Valerianceae). Methods: Antioxidant activity of ethanol extract was assessed by previously reported 2, 2-Diphenyl-1-picrylhydrazyl method. By discovering different types of formulations, such as oil in water, we were able to create several face creams respectively classified from F1 to F6, by incorporating different concentrations of stearic acid and acetyl alcohol. The evaluation of all formulations (F1 to F6) has been done by the analysis of different parameters like pH, viscosity, spread ability and stability. Results: An ethanol fraction analyzed from a sample of Nardostachys jatamansi showed a significant antioxidant activity with an IC50 value of 58.39 μg/mL while for ascorbic acid the IC50 value was 46.68 μg/mL. Among the six formulations (F1-F6) F5 and F6 showed good spread ability, good consistency, homogeneity, appearance, pH;there is no proof of a separation phase and ease of removal. Also the formulations F5 and F6 showed no redness or edema or erythema and irritation during irritancy studies. Conclusions:These formulations can be safely used on the skin. Hence, the study suggests that the composition of extract and the base of the cream F5 and F6 are more stable and safe, but it may produce synergistic action.