Phytochemical and biological studies on alkaloidal content of some allergy producing plants growing in Egypt

ABSTRACT

The over-ground parts of Chenopodium murale, Cyperus alopecuroids, Desmostachya bipinnata and Tamarix nilotica were phytochemically screened and successively extracted with organic solvents, they revealed the presence of sterols and /or triterpenes, carbohydrates and /or glycosides, proteins and /or amino acids, alkaloids and /or nitrogenous bases, coumarin, tannins, flavonoids, traces of saponins and volatile oils. The alkaloidal content of the over-ground parts of the 4 plants were estimated by 3 methods viz. gravimetric, non-aqueous and acid-based titration. Acid-base extraction allowed the isolation of pipirene for the first time from Chenopodium murale, nicotine and anabasine which are the first reported isolation from Tamarix nilotica and from family Tamaricaceae in addition to isolation of choline as hydrochloride and betaine. Allergic study and microbiological screening of the total extracts and alkaloidal components were determined and showed various activity