Cyperus scariosus, a perennial herb plant native to India is an invasive weed with wide distribution. It remained to be an important ingredient of several prescriptions used in indigenous system of medicine to treat a variety of diseases including diarrhea, epilepsy, gonorrhea, syphilis and liver damage. Recent studies highlight its phytochemistry, bioactivity and therapeutic uses. Major chemical components of this herb are alkaloids, flavonols, glycosides, polyphenols, saponins, sesquiterpenoids and essential oil responsible for its claimed traditional importance as one of the potential medicinal herb. Cyperiol, the essential oil obtained on steam distillation of the rhizomes contains about 100 compounds, has its value in perfumary and account for the antibacterial, antifungal, insecticidal and ovicidal activity. Complete information regarding the plant species has been collected from various books and journals and internet databases. This communication aims to integrate all the information available on C. scariosus which may help academicians, agronomists, environmentalists, biological scientists and researchers to explore the potential of this commonly growing weed. Further the data generated would be useful for the pharmaceutical industry.
R.Priya and S.Maneemegalai,DOI: 10.24214/IJGHC/HC/8/1/00916
The present investigation was carried out to explore the phytochemical and phytonutrient contents of leaves of Erythrina indica since it possess medicinal value and used for treating many diseases in traditional medicine. The powdered leaf material of E. indica was assessed for the presence of carbohydrates, proteins, free fatty acids, β carotene, folic acid, nicotinic acid, vitamin E and vitamin C. Moisture content and ash content was also evaluated. Qualitative and quantitative analysis of phytochemicals were conducted in the ethanolic leaves extract of E. indica resulted in the presence of rich range of phytochemicals. Alkaloid was observed to be present in high concentration followed by phenols, flavonoids, tannins, steroids and saponins. The different biological activity of these chemicals establishes the overall medicinal activity of E.indica.
Cette étude a été réalisée pour mettre en évidence l’activité antifongique des huiles essentielles de quatre plantes locales à savoir Lippia multiflora, Cymbopogon citratus, Hyptis suaveolens et Eucalyptus globulus sur quelques germes trouvés sur des semences de riz, maïs, niébé et d’arachide. L’état sanitaire de ces semences a révélé la présence des champignons tels qu’Aspergillus flavus, Aspergillus niger, Rhizopus, Bipolaris oryzae, Cladosporium sphaerospermum, Fusarium pallidoroseum, etc.Les huiles essentielles de Lippia multiflora et de Cymbopogon citratus ont été efficaces à différentes concentrations sur toutes les espèces fongiques. Cependant, toutes huiles ont montré une activité antifongique. Ce qui suggère que le potentiel antimicrobien de ces plantes peut être utilisé pour préserver le pouvoir germinatif des semences.
This study was conducted to highlight the antifungal activity of the essential oils of four local plants namely Lippia multiflora, Cymbopogon citratus, Hyptis suaveolens and Eucalyptus globulus on some germs found on rice, maize, cowpea and peanut seeds. . The health status of these seeds revealed the presence of fungi such as Aspergillus flavus, Aspergillus niger, Rhizopus, Bipolaris oryzae, Cladosporium sphaerospermum, Fusarium pallidoroseum, etc.The essential oils of Lippia multiflora and Cymbopogon citratus were effective at different concentrations on all fungal species. However, all oils showed antifungal activity. This suggests that the antimicrobial potential of these plants can be used to preserve the germinability of seeds.
The medicinal applications of silver and its salts have illustrated from old human civilizations. Currently, the development of nanotechnology has recognized the uses of silver nanoparticles in agriculture and antimicrobial activity included antibacterial, antifungal and antioxidants. The silver nanoparticles are very smaller than microorganisms and easily can diffuse in their cells. Silver nanoparticles have been commonly used in house hold utensils, food storage and biomedical applications. The biosynthesis of silver nanoparticles is an environmentally friendly and efficient method taking part the plant extract and silver salts. The characterizations of silver nanoparticles are very important part in the evaluation of their functional aspects. Characterization is usually done by the methods including X-ray diffractometry, UV-Visible spectroscopy, Fourier transform spectroscopy, Scanning electron microscopy, Transmission electron microscopy, Dynamic light scattering and Atomic force microscopy.