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Preliminary Phytochemical Screening of Some Weed Species of Kadapa District, Andhra Pradesh, India

S Prakash Rao, K Venkata Rami Reddy and P Prayaga Murty

The phytochemical constituents present in weeds act as potential source of useful drugs to improve the health status of humans. Phytochemical surveys are now acted as the first step towards the discovery of useful drugs. Weeds are the richest resource of drugs and useful for the various biological activity. The present investigation includes the Phytochemical screening of some abundantly available weed species from the crop fields of Kadapa district. Phytochemical tests were carried out specially for screening secondary metabolites from the selected weed plants. 21 weed species belonging to 20 genera and 13 different families were phytochemically analyzed to find Different phytochemicals like alkaloids, steroids, phenols tannins, saponins, anthroquinones terpenoides, flavonoids, and glycoside.