Chemistry of the medicinal plants of the Genus Nigella

The botanical and chemical background of the plant of the genus Nigella [Family - Ranunculaceae] has been described. Many researchers have isolated and identified a variety of compounds such as alkaloids, glycosides, amino acids, fatty acids, essential oil, saponins and sterols. Various constituents of the Nigella sativa and Nigella damascene seeds were found to be pharmacologically active. Antiplaque action of the N. sativa seeds extract against S. mutans, topical use in inhibition of skin carcinogenesis in mice, antitumour activity of the active principle of N. sativa seed, insecticidal activity of acids isolated from N. sativa seeds against insects such as Sitophilus oryzae, Tribolium castaneum, Stegobium paniceum ans Bruchus chinesis have also been reported

Chemistry of the medicinal plants of the genus acorus [family araceae]

The botanical and chemical background of the plants of genus acorus [family araceae] have been described. Many investigators have isolated and characterised a variety of compounds such as glucosides, amino acids, flavones, fatty acids and essential oils. Numerous applications of the plants as insecticides, plant growth inhibitors, antifeedants and hair growth sitmulant have been described. The pharmacological studies of the A. calamus rhizomes in drug preparation with varying content of beta-asarone have ben discussed in detail, since the A. calamus having a high content of beta-asarone has been proved to be carcinogenic

Chemistry of the medicinal plants of the genus cestrum [family solanaceae]

The botanical and chemical background of plants of the genus Cestrum N.O. Solanaceae has been described. Many inestigators have isolated and characterized a variety of compounds such as saponins, glycosides, hydrocarbons alkaloids, fatty acids and essential oils. The medicinal and curative effects generally associated with chemical constituents have been briefly outlined. The biological activity of 1 alpha, 25-dihydroxycholecalciferol in calcium absorption and in the synthesis of the intestinal Vitamin D dependent calcium binding protein has been discussed

chemistry of indigenous medicinal plants of the genus ageratum [family compositae]

The botanical and chemical background of plants of the genus Ageratum N.O. Compositae has been described. Many research workers have isolated and characterised a variety of compounds such as flavones/flavonoids, sterol, amino acids, essential oil and fatty acids form these plants. Ageratochromene, 6 -demethoxy-ageratochromene, precocene [1] and precocene [2] from the plants showed anti-juvenile hormone activity in insects. These compounds showed 100% mortality in respect of Sitophilus oryzae and Thlaspida japonica

Isolation of salmonella organism from stool culture of apparently health persons

One hundred and twenty five apparently healthy food handlers including staff of kitchen of various student hostels were studied to check the prevalence of carrier state of Salmonella Typhi. .Fifteen individual [12%] were Salmonella carrier. The carrier state was higher in females [13.88%] as compared to males [11.24%]. Between the ages of 10 and 30 years, 15% were carrier while beyond 30 years only 6.67% were carriers. Only one individual [6.67%] was a urinary carrier