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- W4386844766 abstract "The need for alternative and environmental friendly methods of waste clean-up has led to the use of enzymes in bioremediation. In this study, white rot fungi were isolated from decaying plant parts using standard microbiology and biochemical techniques. The isolated fungal mycelial were identified and screened using standard substrates (2, 6-DMP) to determine their capability for production of Manganese peroxidase. Pure manganese peroxidase was achieved after four distinct purification phases. Crude extract of the homogenate proteins obtained through optimized submerged fermentation system were precipitated using ammonium sulphate salt. Ammonium sulphate of 60% concentrated at pH 4.5 precipitated protein with highest Manganese peroxidase activity (322 U/mg). The precipitated proteins was desalted through dialysis for twelve hours (12hrs) with buffer exchange at interval of six hours (6 hrs) and activity of 343.91 U/mg was recorded afterwards. DEAE-cellulose was used for the ion exchange purification of the dialyzed protein, salt (NaCl) gradients of 0.3-0.6 M was found best in washing off the bound protein from the exchange resin and activity of 434.18 U/mg was recorded from the pooled fraction tubes. sephadex G-100 was used for separation of the proteins into molecular sizes and weights. 2.8 purification folds of the enzyme were gotten after ion exchange (DEAE-cellulose) and gel filtration (sephadex G-100) with percentage yield of 2.20%. Specific activity of the enzyme increased to 602.00% after gel filtration. The partial purified enzyme was further characterized for determination of optimal pH (4.5), temperature (40 °C) and kinetic properties KM of 3.4 mM and VMAX of 250µmol/min." @default.
- W4386844766 created "2023-09-20" @default.
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- W4386844766 date "2023-01-01" @default.
- W4386844766 modified "2023-09-27" @default.
- W4386844766 title "Screening of conditions for manganese peroxidase production from white rot fungi (Pleurotus djamor)" @default.
- W4386844766 doi "https://doi.org/10.22271/micro.2023.v4.i1a.61" @default.
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