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| 1 | Production of chitosan from endolichenic fungi isolated from mangrove environment and its antagonistic activity显示文摘Objective:To screen the chitosan producing ability of endolichenic fungi and its antibacterial activity.Methods:Lichen collected from mangroves was screened for endophytes and the chitosan producing ability of endolichenic fungi by submerged fermentation was also determined.Antibacterial activity was carried out against different pathogens.Results:Totally4 different groups of fungi were isolated from the lichen Roccella montagnei.Among the four genera,Aspergillus niger(A.niger)is potential to produce chitosan(1.3 g/L)on the twelfth day of incubation.Glucose plays an important role in the pnjductivity of chitosan and the yield was maximum at 10%(1.93 g/L).Antibacterial activity revealed that Vibrio cholerae was sensitive to chitosan followed by Escherichia coli.Conclusions:In conclusion,our findings suggest that A.niger is a potential candidate to produce more chitosan than the other strains and glucose plays an important role in the production of chitosan which proves to have a good antibacterial activity. | Logesh AR Thillaimaharani KA Sharmila K Kalaiselvam M Raffi SM | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，2： | 1 |
| 2 | Phase Change Characteristic Study of Spherical PCMS in Solar Energy Storage 显示文摘 | M Veerappan S Kalaiselvam S Iniyan | 2009 | Solar Energy2009，83，8： | 1 |
| 3 | Taxol pro ducing mangrove endophytic fungi Fusarium oxyspo- rum from Rhizophora annamalayana显示文摘 | Elavarasi A Rathna G S Kalaiselvam M | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，2： | 1 |
| 4 | Preparation and Characterization of Sub-micron Spherical Particles of A12 O3 , SiO2 and Mullite显示文摘 | Mumgavel P Kalaiselvam M Renganathan M K | 1998 | Materials Chemistry and Physics1998，53，： | 1 |
| 5 | Taxol producing ma- grove endophytie fungi Fusarium oxysporum from Rhizophora an- namalayana显示文摘 | Elavarasi A Rathna G S Kalaiselvam M | 2012 | Asian Pae Trop Biomed2012，2，2： | 1 |
| 6 | Sub-micrometre spherical particles of TiO2,ZrO2 and PZT by nebulized spray pyrolysis of metal-organic precursors显示文摘 | Murugavel P Kalaiselvam M Rao C N R | 1997 | Journal of Materials Chemistry1997，7，： | 1 |
| 7 | Anti-dermatophytic activity of marine sponge,Sigmadocia carnosa(Dendy)on clinically isolated fungi显示文摘Objective:To screen the anti-fungal effects and find out the active metabolites from sponge, Sigmadocia carnosa(S.carnosa) against four dermatophytic fungi.Methods:The methanol,ethyl acetate and acetone extract of marine sponge,S.carnosa was examined against Trichaphyton mentagrophytes(T.mentagrophytes),Trichophyton rubrum(T.rubrum),Epidermophyton floccosum(E.floccosum) and Microsporum gypseum(M.gypseum) and qualitative analysed to find out the active molecules.Results:The methanol extract of sponge was expressed significant activity than ethyl acetate and acetone.The minimum inhibitory concentration(MIC) of methanol extract of sponge that resulted in complete growth inhibition of T.mentagrophytes,T.rubrum, E.floccosum and M.gypseum were found to 125,250,250 and 250 μg/mL respectively.But, 100%inhibition of fungal spore germination was observed in T.mentagrophytes at 500 μg/mL concentration followed by T.rubrum,E.floccosum and At.gypseum at 1000 μg/mL concentration. Other two extracts showed weak anti spore germination activity against the tested dermatophyte fungi.Methanol extracts showed presence of terpenoids,steroids,alkaloids,saponins and glycosides.Conclusion:Based on the literature,this is the first study which has conducted to inhibit the growth and spore germination of dermatophytic fungi with S.carnosa.Further research also needs to purify and characterize the secondary metabolites from the sponge,5.carnosa for the valuable source of novel substances for future drug discovery. | NB Dhayanithi TT Ajith Kumar M Kalaiselvam T Balasubramanian N Sivakumar | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，8： | 0 |
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