Bharatkumar Rajiv Manuel Vyas

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The ability ofPhanerochœte chrysosporium, Trametes versicolor, Coriolopsis polyzona, andPleurotus ostreatus growing in a nitrogen-limited mineral medium (NMM) to degrade PCBs in a commercial, Delor 106 mixture at a concentration of 0.9 ppm was compared. The respective amounts of PCBs removed from the fungal cultures within 3 weeks were 25, 50, 41, and 0%.(More)
Of the white rot fungi tested, two strains alone and other three in combination with specific yeasts or bacteria degraded PCBs in polluted soil within interval 20–30%. When all organisms were applied together PCB degradation achieved was about 50%.
White-rot fungi (WRF) are ubiquitous in nature with their natural ability to compete and survive. WRF are the only organisms known to have the ability to degrade and mineralize recalcitrant plant polymer lignin. Their potential to degrade second most abundant carbon reserve material lignin on the earth make them important link in global carbon cycle. WRF(More)
The present study provides experimental evidence of in vivo reduction of genotoxic and mutagenic activities of potent carcinogen N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) by the strain Lactobacillus rhamnosus Vc. In vitro studies revealed that coincubation of MNNG with viable cells of L. rhamnosus Vc resulted in the detoxification of the parent compound(More)
Manganese peroxidase (MnP) was produced by shallow stationary cultures ofPhanerochaete chrysosporium growing on N-limited medium. Decolorization of sulfonphthalein (SP) dyes by MnP was investigated. The MnP activity profile and decolorization of SP dyes was correlated and almost all dyes were decolorized at pH 4.0. The influence of various inhibitors on(More)
Growth temperature played an important role in the appearance, maximum level and ratio of manganese peroxidase (MnP) and lignin peroxidase (LIP) activities in the cultures ofPhanerochaete chrysosporium. While at higher temperatures (39, 33, and 28°C) both enzymes were produced (with LIP being the major one) at 23°C MnP was dominant. At 18°C, of the two(More)
Ligninolytic enzymes of the white rot fungiCoriolopsis polyzona, Phanerochaete chrysosporium, andTrametes versicolor growing on wheat straw under nearly natural conditions were investigated. Manganese peroxidase (MnP), secreted as early as on day 3, was dominant over other activities during the initial phase (the first 10 days). Its activity profile was(More)
The study was aimed at evaluating the probiotic potential of indigenous autochthonous Lactobacillus rhamnosus strains isolated from infant feces and vaginal mucosa of healthy female. The survival of the selected strains and the two reference strains (L. rhamnosus GG and L. casei Actimel) was 67-81 % at pH 2 and 70-80 % after passage through the simulated(More)
Binding of mutagens by lactic acid bacteria is one of the mechanisms responsible for their antimutagenic activity. Viable and heat-killed cells of Lactobacillus strains bind acridine orange (AO) rapidly, which occurs predominantly through extracellular cell wall components. Binding of AO by the cells depends on pH, cell-density and AO concentration. Cells(More)
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