Biology, Medicine, & Natural Product Chemistry
Not a member yet
345 research outputs found
Sort by
Identification Of Migratory Birds And Their Spesific Characteristics Of Habitat In The Salt Water Lake Of Gili Meno, North Lombok Distric
Full text linkThe aim of this research was to identify the species of migratory birds in the ecosystem of salt water lake of Gili Meno and their specific characteristics of habitat. Data collection for birds, mangrove and fish species has been carried out in September and October 2013. In this study, a Shannon-Wiener Diversity Index and Importance Value Index (IVI) of mangrove vegetation were calculated to identify carrying capacity of mangrove population in the form of specific habitat in salt water lake of Gili Meno. This research has identified 17 species of birds which are divided into 5 families: Scolopacidae, Charadriidae, Ardeidae, Meropidae and Alcedinidae. Moreover, 3 species of mangrove were discovered that are A. marina, A. lanata and E. Agallocha, as well as one species of fish (Mujair fish/O. mossambicus). N. Nycticorax and B. Striatus were well-known to have higher population than other bird species. The Diversity Index showed that mangrove vegetation in the ecosystem of salt water lake of Gili Meno has a low species diversity (0.565). This is due to higher dominance of one species than the others. What is more, the IVI of A. marina demonstrated a fairly significant value compared to that of other species (189,01). Mangrove vegetation which surrounds the ecosystem of salt water lake of Gili Meno has formed a unique habitat and and an ideal stopover site for migratory birds. The ecosystem not only provides shelters from predators but also supplies for various abundant feeding sources. The lake it self is rather shallow and muddy around the shore which gives advantages for the migratory birds to obtain plenty small fish from the lake
Ecopharmacognosy: Exploring The Chemical And Biological Potential Of Nature For Human Health
Full text link“Why didn’t they develop natural product drugs in a sustainable manner at the beginning of this century?â€Â In 2035, when about 10.0 billion will inhabit Earth, will this be our legacy as the world contemplates the costs and availability of synthetic and gene-based products for primary health care? Acknowledging the recent history of the relationship between humankind and the Earth, it is essential that the health care issues being left for our descendants be considered in terms of resources. For most people in the world, there are two vast health care “gapsâ€, access to quality drugs and the development of drugs for major global and local diseases. Consequently for all of these people, plants, in their various forms, remain a primary source of health care. In the developed countries, natural products derived from plants assume a relatively minor role in health care, as prescription and over-the-counter products, even with the widespread use of phytotherapeutical preparations. Significantly, pharmaceutical companies have retrenched substantially in their disease areas of focus. These research areas do not include the prevalent diseases of the middle- and lower-income countries, and important diseases of the developed world, such as drug resistance. What then is the vision for natural product research to maintain the choices of drug discovery and pharmaceutical development for future generations? In this discussion some facets of how natural products must be involved globally, in a sustainable manner, for improving health care will be examined within the framework of the new term “ecopharmacognosyâ€, which invokes sustainability as the basis for research on biologically active natural products. Access to the biome, the acquisition, analysis and dissemination of plant knowledge, natural product structure diversification, biotechnology development, strategies for natural product drug discovery, and aspects of multitarget therapy and synergy research will be discussed. Options for the future will be presented which may be significant as countries decide how to develop approaches to relieve their own disease burden, and the needs of their population for improved access to medicinal agents
The Effect of Water-Soluble Stem Extract “Kayu Kuning“ (Arcangelisia flava L.Merr) On The Growth Inhibition of Candida albicans ATCC 10231 and Trichophyton mentagrophytes IN VITRO
Full text link“Kayu kuning†(Arcangelisia flava L.Merr) was used when someone has a skin problem caused by Candida albicans and Trichophyton mentagrophytes. Scientific based medicine on this traditional knowledge was necessary be done. Stem powderwas extracted by distilled water.The extract was then evaporated. Qualitative and quantitative analysis of the active substance e.g., Berberin chloride by Thin Layer Chromatography (TLC) The antifungal activity againts Candida albicans and Trichophyton mentagrophyteswere tested by using agar diffusion and microdilution methods. The absorbance from microdilution were analized by One way ANOVA. The conclusion showed that the extract contained 1.55±0.12% w/walkaloid calculated as Berberine chloride. The inhibition zone for Candida albicans and Trichophyton mentagrophytes were 16.65±4.52 and 6.55±0.05 mm respectively. The MIC vallue for both fungi was 10 mg/mL.The MBC value for Candida albicans was 40 mg/mL and for Trichophyton mentagrophytes was 50 mg/mL. From the analysis with one-way ANOVA, shows that there are significant differences between the positive control group and the test solution with the negative control group with p=0.020 for Candida albicans and p=0.028 for Trichophyton mentagrophytes (p0.050
