Reduction of selenite to elemental Se(0) with simultaneous degradation of phenol by co-cultures of Phanerochaete chrysosporium and Delftia lacustris Samayita Chakraborty, Eldon R. Rene, Piet N. L. Lens Journal of Microbiology, 2019 The simultaneous removal of phenol and selenite from synthetic wastewater was investigated by adopting two different co-culturing techniques using the fungus Phanerochaete chrysosporium and the bacterium Delftia lacustris. Separately grown biomass of the fungus and the bacterium (suspended co-culture) was incubated with different concentrations of phenol (0-1,200 mg/L) and selenite (10 mg/L). The selenite ions were biologically reduced to extracellular Se(0) nanoparticles (3.58 nm diameter) with the simultaneous degradation of up to 800 mg/L of phenol. Upon growing the fungus and the bacterium together using an attached growth co-culture, the bacterium grew as a biofilm onto the fungus. The extracellularly produced Se(0) in the attached growth co-culture had a minimum diameter of 58.5 nm. This co-culture was able to degrade completely 50 mg/L phenol, but was completely inhibited at a phenol concentration of 200 mg/L.
Kinetics of rapamycin production by Streptomyces hygroscopicus MTCC 4003 Subhasish Dutta, Bikram Basak, Biswanath Bhunia, Samayita Chakraborty, Apurba Dey 3 Biotech, 2014 Research work was carried out to describe the kinetics of cell growth, substrate consumption and product formation in batch fermentation of rapamycin using shake flask as well as laboratory-scale fermentor. Fructose was used as the sole carbon source in the fermentation media. Optimization of fermentation parameters and reliable mathematical models were used for the maximum production of rapamycin from Streptomyces hygroscopicus MTCC 4003. The experimental data for microbial production of rapamycin fitted well with the proposed mathematical models. Kinetic parameters were evaluated using best fit unstructured models, viz. Andrew's model, Monod model, Yano model, Aiba model. Andrew's model showed a comparatively better R 2 value (0.9849) among all tested models. The values of maximum specific growth rate (l max ), saturation constant (K S ), inhibition constant (K i ), and growth yield coefficient (Y X/S ) were found to be 0.008 (h -1 ), 2.835 (g/L), 0.0738 (g/L), and 0.1708 (g g -1) , respectively. The optimum production of rapamycin was obtained at 300 rpm agitation and 1 vvm aeration rate in the fermentor. The final production of rapamycin in shake flask was 539 mg/L. Rapamycin titer found in bioreactor was 1,316 mg/L which is 52 % higher than the latest maximum value reported in the literature.
Unraveling Cellulase Complexes: Innovations and Applications AKPRRS Anamika Chatterjee, Samayita Chakroborty Biofuel and Biorefinery Technologies 16, 43-73 , 2025 2025.0
Exploring the potential extremophilic microbes for bioremediation S Dutta, J Bhattacharjee, S Chakraborty Extremophiles. De Gruyter, 383-406 , 2022 2022.0 Citations: 2
Biovalorisation of liquid and gaseous effluents of oil refinery and petrochemical industry S Chakraborty CRC Press , 2021 2021.0
Effect of tungsten and selenium on C1 gas bioconversion by an enriched anaerobic sludge and microbial community analysis S Chakraborty, ER Rene, PNL Lens, J Rintala, MC Veiga, C Kennes Chemosphere 250, 126105 , 2020 2020.0 Citations: 31
Adsorptive removal of alcohols from aqueous solutions by N-tertiary-butylacrylamide (NtBA) and acrylic acid co-polymer gel S Chakraborty, R Bera, A Mandal, A Dey, D Chakrabarty, ER Rene, ... Materials Today Communications 21, 100653 , 2019 2019.0 Citations: 10
Reduction of selenite to elemental Se(0) with simultaneous degradation of phenol by co-cultures of Phanerochaete chrysosporium and Delftia lacustris S Chakraborty, ER Rene, PNL Lens Journal of Microbiology 57 (9), 738-747 , 2019 2019.0 Citations: 15
Enrichment of a solventogenic anaerobic sludge converting carbon monoxide and syngas into acids and alcohols S Chakraborty, ER Rene, PNL Lens, MC Veiga, C Kennes Bioresource Technology 272, 130-136 , 2019 2019.0 Citations: 61
Kinetics of rapamycin production by Streptomyces hygroscopicus MTCC 4003 S Dutta, B Basak, B Bhunia, S Chakraborty, A Dey 3 Biotech 4 (5), 523-531 , 2014 2014.0 Citations: 34
Kinetics of phenol biodegradation at high concentration by a metabolically versatile isolated yeast Candida tropicalis PHB5 B Basak, B Bhunia, S Dutta, S Chakraborty, A Dey Environmental Science and Pollution Research 21 (2), 1444-1454 , 2014 2014.0 Citations: 92
Decolorization and biodegradation of congo red dye by a novel white rot fungus Alternaria alternata CMERI F6 S Chakraborty, B Basak, S Dutta, B Bhunia, A Dey Bioresource technology 147, 662-666 , 2013 2013.0 Citations: 174
Nitric Oxide scavenging activity study of ethanolic extracts of Ixora coccinea from two different areas of kolkata S Banerjee, A Chanda, A Ghoshal, R Debnath, S Chakraborty, R Saha 2011.0 Citations: 30
New paper S Chakraborty
Biodegradation of phenol in the presence of selenite by fungi and bacterial consortium S Chakraborty, ER Rene, PNL Lens ABWET, 11 , 0
MOST CITED SCHOLAR PUBLICATIONS
Decolorization and biodegradation of congo red dye by a novel white rot fungus Alternaria alternata CMERI F6 S Chakraborty, B Basak, S Dutta, B Bhunia, A Dey Bioresource technology 147, 662-666 , 2013 2013.0 Citations: 174
Kinetics of phenol biodegradation at high concentration by a metabolically versatile isolated yeast Candida tropicalis PHB5 B Basak, B Bhunia, S Dutta, S Chakraborty, A Dey Environmental Science and Pollution Research 21 (2), 1444-1454 , 2014 2014.0 Citations: 92
Enrichment of a solventogenic anaerobic sludge converting carbon monoxide and syngas into acids and alcohols S Chakraborty, ER Rene, PNL Lens, MC Veiga, C Kennes Bioresource Technology 272, 130-136 , 2019 2019.0 Citations: 61
Kinetics of rapamycin production by Streptomyces hygroscopicus MTCC 4003 S Dutta, B Basak, B Bhunia, S Chakraborty, A Dey 3 Biotech 4 (5), 523-531 , 2014 2014.0 Citations: 34
Effect of tungsten and selenium on C1 gas bioconversion by an enriched anaerobic sludge and microbial community analysis S Chakraborty, ER Rene, PNL Lens, J Rintala, MC Veiga, C Kennes Chemosphere 250, 126105 , 2020 2020.0 Citations: 31
Nitric Oxide scavenging activity study of ethanolic extracts of Ixora coccinea from two different areas of kolkata S Banerjee, A Chanda, A Ghoshal, R Debnath, S Chakraborty, R Saha 2011.0 Citations: 30
Reduction of selenite to elemental Se(0) with simultaneous degradation of phenol by co-cultures of Phanerochaete chrysosporium and Delftia lacustris S Chakraborty, ER Rene, PNL Lens Journal of Microbiology 57 (9), 738-747 , 2019 2019.0 Citations: 15
Adsorptive removal of alcohols from aqueous solutions by N-tertiary-butylacrylamide (NtBA) and acrylic acid co-polymer gel S Chakraborty, R Bera, A Mandal, A Dey, D Chakrabarty, ER Rene, ... Materials Today Communications 21, 100653 , 2019 2019.0 Citations: 10
Exploring the potential extremophilic microbes for bioremediation S Dutta, J Bhattacharjee, S Chakraborty Extremophiles. De Gruyter, 383-406 , 2022 2022.0 Citations: 2
Unraveling Cellulase Complexes: Innovations and Applications AKPRRS Anamika Chatterjee, Samayita Chakroborty Biofuel and Biorefinery Technologies 16, 43-73 , 2025 2025.0
Biovalorisation of liquid and gaseous effluents of oil refinery and petrochemical industry S Chakraborty CRC Press , 2021 2021.0
New paper S Chakraborty
Biodegradation of phenol in the presence of selenite by fungi and bacterial consortium S Chakraborty, ER Rene, PNL Lens ABWET, 11 , 0