To study the chemical constituents of Piper wallichii (Miq.) Hand.-Mazz., and to explore the effects of extractive on proliferation and telomerase activity of human tongue squamous cell carcinoma Tca83 cells and its anti-cancer mechanisms. Sephadex LH-20 and several other column chromatography techniques were employed for separation of chemical constituents from Piper wallichii (Miq.) Hand.Mazz...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

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...

A simple, rapid and precise spectrophotometric method has been developed for the estimation of piperine in Ayurvedic formulation Chitrakadi Vati. Three marketed preparations of Chitrakadi Vati containing black pepper (Piper nigrum) and pippali (Piper longum) from different manufacturer (CV-1, CV-2 and CV-3) were taken in this study to estimate the % w/w of piperine. The % w/w content of piperin...

Psidium guineense Swartz is a shrub native to Brazil. It is consumed in natura or in the form of pulp, which presents a high content of C vitamin and proteins. The chemical prospection of the aqueous extracts from unripe and mature pulp revealed the presence of tannins and flavonoids. The extracts demonstrated moderate antibacterial activity against the most of strains tested, and the best resu...

He who pays the piper calls the tune, but he can only succesfully call for a tune that he will recognize upon hearing. Previous models, of two candidates impressing a voter and of firm managers impressing stock speculators, found experts ignoring costly superior information in favor of client preconceptions. Similar result hold when we greatly generalize the agents, choices, information structu...