Mohanasundaram Kuppusamy

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Influence of corn steep liquor on the cell yield and toxicity of three strains of B. thuringiensis var israelensis and two strains of B. sphaericus was studied and compared with peptone-yeast extract using a laboratory fermentor. Large increase in the cell yield of all the three strains of B. thuringiensis var israelensis was observed when cornsteep liquor(More)
Larvicidal proteins of B. sphaericus H5a5b (strain VCRC B42), purified by ion-exchange chromatography were used to raise antibodies in rabbits. The antibodies were specific in reacting to alkali-solubilized fractions from whole cells of toxic strains only. Ouchterlony immunodiffusion showed homology in toxin structure between strains of different serotype.(More)
Three different formulations of Bacillus sphaericus viz, Spherimos, Vectobac and Spherifix, were evaluated for their efficacy and residual activity against Culex quinquefasciatus breeding in polluted disused wells. Spherimos, a flowable concentrate formulation, exerted 96-100% control when treated at the dosage of 10 l/ha for 17 days, whereas the effective(More)
Cyclosporine-A obtained from an indigenous isolate of Tolypocladium sp. was evaluated for immunosuppressive potential by skin grafting in rats using the commercially available Sandimmune as reference at 15 and 30 mg/kg/day for a period of 14 days. The Sandimmune treated animal group showed 83 per cent acceptance of skin grafts while the test preparation(More)
Level of extracellular proteolytic and amylolytic enzyme production was determined to assess the ability of these strains in utilizing complex carbon and nitrogen sources. Protease secretion reached maximum at around 12th h of growth in case of all the three B. thuringiensis strains and declined sharply thereafter. In B. sphaericus strains the protease(More)
Problem statement: This study has expounded the application of evolutionary computation method namely Genetic Algorithm (GA) for estimation of feedback controller parameters for induction motor. GA offers certain advantages such as simple computational steps, derivative free optimization, reduced number of iterations and assured near global optima. The(More)
Cell yield and toxicity of B. thuringiensis H-14 was improved markedly by adopting a simple fed-batch fermentation technique based on controlling glucose concentration. Maintenance of steady glucose concentration (0.3-0.5%) in the culture medium was achieved by the continuous addition of concentrated glucose solution. Addition of glucose at 3 g/hr/l of(More)
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