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| 1 | In vitro antioxidant activities of ethanol extract from Enhalus acoroides (L.F.) Royle显示文摘Objective:To search for new sources of safe and inexpensive antioxidants,the leaf,root and rhizome of Enhalus acoroides(E.acoroides) were screened for the first time for their antioxidant activities.Methods:Samples of leaf,root and rhizome from E.acoroides were tested for total phenolic content,proanthocyanidins and in vitro antioxidant activity in terms of total antioxidant assay,DPPH assay and FRAP assay.Results:The leaf sample was found to have high levels of phenolic(0.323±0.028 mg TAE/g) and proanthocyanidins(0.570 0±0.000 3 mg TAE/g) when compared to root and rhizome.The leaf samples exhibited higher total antioxidant activity (11.770±0.026 mg Ascorbic acid equivalent/g),higher percentage of DPPH radical scavenging activity(25.76±0.04) and higher reducing power(18.060±0.073) in terms of mg GAE/g.In addition, there was a significant correlation between total phenolic content and total antioxidant activity (R^2=0.923),DPPH assay(R^2=0.509).FRAP assay(R^2=0.994).Similarly,significant correlation was found between the proanthocyanidin and total antioxidant activity(R^2=0.977),DPPH assay (R^2=0.464) and the FRAP assay(R^2=0.998).Conclusions:These results suggested that E.acoroides have strong antioxidant potential.Further study is necessary for isolation and characterization of the active antioxidant agents,which can be used to treat various oxidative stress-related diseases. | Rengasamy Ragupathi Raja Kannan Rajasekaran Arumugam Perumal Anantharaman | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，11： | 15 |
| 2 | Antibacterial potential of three seagrasses against human pathogens显示文摘Objective:To evaluate the antibacterial activity of Halophila stipulacea(H.stipulacea), Cymodocea serrulata(C.serrulata) and Halodule pinifolia(H.pinifolia) against seven human bacterial pathogens.Methods:The antibacterial activities of the extracts on the various test organisms using disc diffusion method and Minimum Inhibitory Concentraction(MIC).Results: Methanol and chloroform extracts of all the three seagrasses were active against all the tested pathogens,whereas the hexane extract of seagrasses was not active against Staphylococcus aureus (S.aureus).Antibacterial activity of three seagrass screened,was in the order of H.pinifolia > H.stipulacea.> C.serrulata.Conclusions:This antibacterial studies can further investigated on seagrasses for purification of bioactive substance and its possible utility in disease control. | Rengasamy Ragupathi Raja Kannan Rajasekaran Arumugam Perumal Anantharaman | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，11： | 7 |
| 3 | Exploitation of Dunaliella for β-carotene production显示文摘 | RAJA R HEMAISWARYA S RENGASAMY R | 2007 | Applied Microbiology Biotechnology2007，74，： | 1 |
| 4 | Effect of dispersible soil clay and algae on seepage prevention from small dams 显示文摘 | Rengasamy | 1996 | Agricultural Water Management1996，29，2： | 1 |
| 5 | 显示文摘 | Rengasamy R S Das Dipayan Praba Karan C | 2011 | Journal of Hazardous Materials2011，185，1： | 1 |
| 6 | Oil spill clean up by structured fibre assembly 显示文摘 | KARAN C P RENGASAMY R S DAS D | 2011 | Indian Journal of Fibre & Textile Research2011，36，： | 1 |
| 7 | Nanoparticle penetra- tion through NlOSH-approved N95 filtering-facepieee respirators 显示文摘 | Rengasamy S Verbofsky R King WP | 2007 | J lnt Soc Respir Prot2007，24，： | 1 |
| 8 | Water Quality and PAM Interactions in Reducing Surface Sealing显示文摘 | SHAINBERG I WARRIINGTON D RENGASAMY P | 1990 | Soil Science1990，149，5： | 1 |
| 9 | Design, synthesis, and biological evaluation of 1-(4-sulfamylphenyl)-3-trifluoromethyl-5-indolyl pyrazolines as cyclooxygenase-2 (COX-2) and lipoxygenase (LOX) inhibitors显示文摘 | M.V. Ramana Reddy Vinay K. Billa Venkat R. Pallela Muralidhar R. Mallireddigari Rengasamy Boominathan Jerome L. Gabriel E. Premkumar Reddy | 2008 | Bioorganic & Medicinal Chemistry2008，，7： | 1 |
| 10 | Thermoplastic polyurethane toughened polyacetal blends 显示文摘 | PALANIVELU K BALAKRISHNAN S RENGASAMY P | 2000 | Polym Test2000，，19： | 1 |
| 11 | Water quality andPAM interactions in reducing surface sealing 显示文摘 | Shainberg I Warriington D N Rengasamy P | 1990 | Soil Science1990，149，： | 1 |
| 12 | Development of soy- based UV-curable acrylate oligomers and study of their film properties显示文摘 | RENGASAMY S MANNARI V | 2013 | Progress in Organic Coatings2013，76，1： | 1 |
| 13 | Transient salinity and subsoil constraints to dryland farming in Australian sodic soil: an overview显示文摘 | Rengasamy P | 2002 | Aus tralian Journal of Experimental Agriculture2002，42，： | 1 |
| 14 | Thermoplastic polyurethane toughened polyacetal blends显示文摘 | Palanivelu K Balakrishnan S Rengasamy P | 2000 | Polym Test2000，19，1： | 1 |
| 15 | Wheat growth in a saline sandy loam soil as affected by N form and applica- tion rate显示文摘 | ELGHARABLY A Marschner P Rengasamy P | 2010 | Plant and Soil2010，328，1： | 1 |
| 16 | Comparison of nanoparticle filtration performance of NIOSH-approved and CE-marked particulate filtering facepiece respirators 显示文摘 | Rengasamy S Eimer B C Shaffer R E | 2009 | Ann Occupational Hygiene2009，53，2： | 1 |
| 17 | UV-curable PUDs based on sustainable actylated polyol:study of their hydrophobic and oleophobic properties显示文摘 | RENGASAMY S MANNARI V | 2014 | Progress in Organic Coatings2014，77，3： | 1 |
| 18 | Heat Transfer Characteristics of Spray Cooling in a Closed Loop 显示文摘 | Lanchao Lin Rengasamy Ponnappan | 2003 | International Journal of Heat and Mass Transfers2003，46，： | 1 |
| 19 | Effect of mono- and divalent cations on sorption of water-extractable organic carbon and microbial activity显示文摘 | Setia R Rengasamy P Marschner P | 2014 | Biology & Fertility of Soils2014，50，： | 1 |
| 20 | Comparison of nanoparticle filtration performance of NIOSH-approved and CE marked filte- ring-facepiece respirators 显示文摘 | Rengasamy S Eimer B Shafl'er RE | 2009 | Ann Occup Hyg2009，53，： | 1 |
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