Quality Assurance of Stored Pepper (Piper guineense) Using Controlled Processing Methods

Rehydration characteristics of dehydrated West African pepper (Piper guineense) leaves

The rehydration characteristics of dehydrated West African pepper leaves were investigated at hydration temperatures of 28, 60, 70, and 80°C. Four treatments were given to the leaves: blanched and sun dried, unblanched and sun dried, blanched and shade dried, and unblanched and shade dried. The hydration process of the dehydrated leaves was adequately described by the Peleg's equation. As the h...

Piper guineense pdf

Molluscicidal effect of Piper guineense.

The study was undertaken to assess the dosage-mortality ratio and toxic effects of Piper guineense fruit extracts on the adults of Biomphalaria pfeifferi, the snail intermediate host of Schistosoma mansoni, which causes intestinal schistosomiasis. The result showed significant toxic effects with crude ethanol and hot water fruits extracts. The estimated lethal dose concentration by arithmetic m...

Phytochemical Composition of Aframomum melegueta and Piper guineense Seeds

Samples of two spice plants; Aframomum melegueta and Piper guineese were analyzed for phytochemical composition. The result of the phytochemical screening of the two seeds reveals the presence of alkaloids, flavonoids, tannins, saponin, steroids, cardiac glycosides and terpenes. The percentage of alkaloids in Aframomum melegueta 2.17% was higher than that in Piper guineense which contained 1.67...

Using formal methods for quality assurance of interlocking systems

”Formal methods” denotes mathematical techniques making it possible to perform a formal mathematical proof of the compliance – or noncompliance – of a system to its specification. We discuss the views of the Swedish National Rail Administration on the use of formal methods to increase safety and reliability of safety-critical signalling systems. As a study, a formal requirements specification f...