Phytochemical screening approaches ultimately, the goal in surveying plants for biologically active or rnedicinally useful compounds should be to isolate the one or more constituents responsible for a particular activity. General techniques involved in phytochemical analysis international journal of advanced research in chemical science (ijarcs) page 27 mass is packed and the top of the percolator is closed.
The main classes of plant antimicrobials as well as the preliminary phytochemical screening methods of secondary metabolites are compiled herein, we have also reviewed and discussed the cutoff points to define the significance of antimicrobial agents. Phytochemical screening - free download as word doc (doc), pdf file (pdf), text file (txt) or read online for free.
Phytochemical screening of different extractions revealed the presence of phenols, flavonoids, tannins, saponins, alkaloids, steroids, terpenoids, glycosides and reducing sugars which could account for its varied medicinal properties like anti-inflammatory, anti-spasmodic, anti-analgesic, neuroprotective and diurectic effects. Preliminary phytochemical screening showed (table 1) the presence or absence of alkaloids, flavonoids, steroids, terpenoids, reducing sugars, saponins, tannins, cardiac glycosides, anthraquinones in varying amount in the b diffusa extracts.
Phytochemical screening it refers to the extraction , screening and identification of the medicinally active substances found in plants some of the bioactive substances that can be derived from plants are flavonoids, alkaloids, carotenoids, tannin, antioxidants and phenolic compounds.
Phytochemical screening and in vitro bioactivities of the extracts of aerial part of boerhavia diffusa linn.