In vitro activity of the essential oil from Piper diospyrifolium leaves was tested using disk diffusion techniques. The antifungal assay showed significant potencial antifungal activity: the oil was effective against several clinical fungal strains. The majority compounds in the essential oil were identified as sesquiterpenoids by GC-MS and GC-FID techniques.

l,2Methylenedloxy-6-methyl-4H-dibenzo [de,g] quinoline -4,5(6H)-dione together with 5-hydroxy-4',7-dimethoxyflavone; /J-sitosterol, stigmasterol and esters from the lauric and stearic acids, were isolated from the stem of Piper manausense Yunk (Piperaceae). INTRODUCCIÓN Aporphine alkaloids have been studied extenslvely because these compounds are of pharmacological significant importance (1). T...

Members of the botanical family Piperaceae were among the first cultivated plants1. Black pepper (Piper nigrum) and long pepper (Piper longum) are the best known species in this family and are probably among the most recognized spices in the world. Black pepper alone accounts for about 35% of the world’s total spice trade. In addition, black pepper and long pepper have been used medicinally for...

Antipyretic effects of petroleum ether and ethyl acetate soluble fractions of ethanol extract of the leaves of Peperomia pellucida (Linn.) HBK (Fam. Piperaceae) were investigated. Intraperitoneal administration of boiled milk at a dose of 0.5 ml/kg body weight in albino rabbit leads to pyrexia. Intraperitoneal (i.p.) administration of petroleum ether and ethyl acetate soluble fractions of ethan...

Piper interruptum Opiz. and Piper chaba Linn. are herbaceous plants in the Piperaceae family. The ethanol extract of P. interruptum and P. chaba inhibited ethyl phenylpropiolate-induced ear edema and carrageenan-induced hind paw edema in rats. Both extracts reduced transudative and granuloma weights as well as body weight gain and thymus weight of the chronic inflammatory model using cotton pel...

Exhaustive hydro-distillation of the leaves of Piper aduncum and fruits of Piper gibbilimbum (Piperaceae) afforded colorless and pale orange colored oils in 0.35 and 0.30 % yields, respectively. Detailed chemical analysis by GC/MS indicated the volatile constituents of Piper aduncum to be composed of dill apiole (43.3%), beta-caryophyllene (8.2%), piperitione (6.7%) and alpha-humulene (5.1%), w...