• List of Articles Padina sp

      • Open Access Article

        1 - Survey on antibacterial effect of Padina sp. and Sargassum sp. collected from the coastal areas of Bushehr port on Vibrio cholera and Escherichia coli isolated from water
        Alireza Golchin Manshadi برهان مال الهی محمد ترحمی
        To evaluate the antibacterial effect of Padina sp. and Sargassum sp. extracts, collected from coastal areas of Bushehr port, on Vibrio cholera and Escherichiacoli, after washing in distilled water, the Padina sp. and Sargassum sp. were dried. Extraction was performed by More
        To evaluate the antibacterial effect of Padina sp. and Sargassum sp. extracts, collected from coastal areas of Bushehr port, on Vibrio cholera and Escherichiacoli, after washing in distilled water, the Padina sp. and Sargassum sp. were dried. Extraction was performed by immersion in 96% methanol to obtain methanol extract. Serial dilutions of the algal extracts were prepared by methanol and DMSO to find effect of solvent on algea potential as pure (100 percent), 25 percent and finally 12.5 to 0.195 percent. Concentration of bacteria for inoculating in tubes were prepared base on McFarlane turbidity and was used to determine Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of algal extracts. The results showed that both Padina sp .and Sargassum sp. were effective on V. cholera and E. coli, although the results were not statistically significant (P>0.05). However the effect of Padina sp. on both bacteria and methanol extract was more. The relationship between the concentration of algal extracts with MIC and MBC based on linear regression method showed that there is a significant relationship between two parameters (P≤0.05). Manuscript profile
      • Open Access Article

        2 - Biosorption of chromium (VI) from aqueous solution by dried biomass of Padina borgesenni
        D. Kosari S. Saphaeian H. Ghaphorian
        In this study removal of Chromium VI from aqueous solution by marine brown algae Padina borgesenni as adsorant is concerned in different batch experiments. The samples were collected by a scuba diver from Hengam Island in Persian Gulf with longitude of 26̊ and 40̋ North More
        In this study removal of Chromium VI from aqueous solution by marine brown algae Padina borgesenni as adsorant is concerned in different batch experiments. The samples were collected by a scuba diver from Hengam Island in Persian Gulf with longitude of 26̊ and 40̋ North and latitude of 52̊ and 30̋ East in 89 Fall and transferred to the laboratory. Parameters such as the initial Chromium concentration of the solution which were 125, 250, 500, 750, 1000 ppm, respectively, and the initial pH 2, 4, 7 in 6 hours were investigated. Determination of Chromium VI was conducted by atomic absorption, VARIAN AA 240, and the statistical analysis were performed by SPSS14. Elimination of Chromium VI depended on two prominent factors, the former was the initial Chromium VI concentration and the latter was the initial pH. The maximum uptake by dried biomass of Padina borgesenni was in pH 2 and 750 ppm. This study demonstrated that the initial pH played important role in Chromium uptake by the sorbent. Manuscript profile