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Articles by R. Subashkumar
Total Records ( 4 ) for R. Subashkumar
  Tha. Thayumanavan , R. Subashkumar , G. Vivekanandhan , K. Savithamani and P. Lakshmanaperumalsamy
  The incidence of Aeromonas hydrophila in retail seafood outlets as a source of cross-contamination in Coimbatore, South India, was studied for a period of one year from February 2000 to January 2001. A total of 179 strains of A. hydrophila were isolated. The maximum incidence (89.8%) of A. hydrophila was recorded in wash-water samples followed by platform, balance, butcher’s hand, cutting board and knife. It was recorded that 84.9% of the strains were haemolysin producers. They were resistant to bacitracin and all were sensitive to both chloramphenicol and ciprofloxacin. As the number of recognised disease causing organisms originating from the aquatic environment has been increasing in recent years, aeromonads should be carefully monitored in foodstuffs as a possible source of food borne infections.
  R. Subashkumar , Tha. Thayumanavan , C. Thilagavathy , G. Vivekanandhan , K. Savithamani and P. Lakshmanaperumalsamy
  I. Seethalakshmi , R. Subashkumar and P. Saminathan
  The study sought a prevalence of virulent A. salmonicida and A. hydrophila in marketed fish samples by the molecular methods. A significant score of incidences (31.25 and 15.6% of A. salmonicida and A. hydrophila, respectively) were recorded and more diversification among the isolates based on their availability. It is important threat to the people who are consuming contaminated fish and other seafoods. Existence of putative virulence genes hlyA and aerA provides evidence for mutifactorial activities, which is encoded by the virulence factors like haemolysin and aerolysin and thus has the potential pathogenic. It was apparent that representatives of the four genotypes (hlyA+ aerA+, hlyA- aerA+, hlyA- aerA- and hlyA+ aerA-) were detected. The role in assessing Aeromonas influences on adverse public health is warranted
  K. Rajeswari , R. Subashkumar and K. Vijayaraman
  In recent years bacteria have been drawing a tremendous attention due to their ability to treat waste water and thereby improve water quality. Hence, a study was undertaken to explore the nature of bacteria in order to exploit them as a tool in the bioremediation of dyehouse wastes. Effluent samples were collected from textile dyeing units and a Common Effluent-Treatment Plant (CETP) located in Tiruppur and Telungupalayam, Tamil Nadu. Totally 112 bacterial strains were obtained from Textile dyeing units and the CETP, based on their growth on nutrient agar medium supplemented with mixed azo dyes and their ability to decolorize mixed reactive azo dyes was studied. The effect of nutrient on decolorization revealed 0.5% of yeast extract was the best nitrogen source for up to 98% decolorization of mixed dye. Out of 112 strains 5 most effective strains were selected based on their decolorization of the dye up to 2700 mg L-1 through an acclimatization study. Optimum decolorization took place strictly under static conditions and pH and temperature were maintained constant at 7.0 and 30°C, respectively. The degradation product after decolorization was examined by TLC and FTIR.
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