ABSTRACT
Capsicum species, Solanaceae, have been used for centuries as food additives by populations of different regions of the world. Capsaicin (trans-methyl-N-vainillyl-nonenamide) is the main pungent compound extracted from the red hot pepper fruit (Capsicum spp.). The capsaicin content was determined by means of a HPLC method. The results showed that Capsicum chacoense Hunz., contains similar amounts of capsaicin (13.9 mg/100 g of dry fruit) in comparison with Capsicum baccatum L. (12.6 mg/100 g) and Capsicum annum L. (10.1 mg/100 g). Dichloromethane (CH2Cl2) and ethanol (EtOH) extracts of C. chacoense elicited a 46% and 38 % of inhibition on the arachidonic acid (AA) pathway in ear edema respectively while the CH2Cl2 and EtOH extracts of C. baccatum inhibited 52% and 35% the arachidonic acid response respectively.
ABSTRACT
A differential morphoanatomical study was performed in two Argentine species: Hybanthus parviflorus and Hybanthus bigibbosus. Fresh material fixed in acetoalcoholic formalin and material from herbarium were employed. Paradermal and longitudinal sections of stems and transversal sections of leaves were prepared and stained with aqueous alcoholic safranin. The hydrochloric fluoroglucyn test was performed. Known and novel characters (distribution of vascular bundles of the primary stem and type and relative length of cover hairs and cuticular ornamentation of the adaxial epidermis, respectively) prove to be of value for the recognition of these species.Furthermore, the intestinal propulsor activity, related to the popular uses of these species was also assessed. Infusions of the whole plant, their roots and the 50 percent EtOH extracts of the aerial parts of H. parviflorus and H. bigibbosus were tested by the activated charcoal method. The extracts of H. parviflorus proved to have a significant activity which would allow validating its popular use.
Se encaró el estudio morfoanatómico diferencial de dos especies argentinas: Hybanthus parviflorus e Hybanthus bigibbosus. Se trabajó con material fresco fijado en formalina aceto-alcohólica y de herbario. Se realizaron preparados paradermales y cortes longitudinales y transversales de tallos y transversales de hoja empleando safranina alcohólico-acuosa y el test de floroglucina clorhídrica. Caracteres conocidos (distribución de haces vasculares en tallo primario) y novedosos (tipología y longitud relativa de tricomas tectores; ornamentación cuticular de la epidermis adaxial) poseen valor diferencial para el reconocimiento de estas especies.Asimismo se determinó la actividad de propulsión intestinal de ambas especies, relacionada con su uso popular. Se ensayaron las infusiones de la raíz y de las partes aéreas y el extracto EtOH 50 por ciento de las partes aéreas de H. parviflorus e H. bigibbosus, empleando el método del carbón activado. Los extractos de H. parviflorus presentaron una actividad significativa que permitiría validar su uso popular.
Subject(s)
Plant Extracts , Plants, Medicinal , Violaceae/anatomy & histology , ArgentinaABSTRACT
Se procederá a la revisión de los mecanismos conducentes a la melanogénesis y los distintos factores que inciden en la pigmentación cutánea, para luego realizar una descripción de los diferentes productos utilizados en el tratamiento del melasma.