Biomedical subjects

P T Kalaichelvan

Publications and source records attributed to P T Kalaichelvan.

3 recordsLinked to original sources

PubMed2003

Synthetic dye decolourization by white rot fungi.

Synthetic dyes are integral part of many industrial products. The effluents generated from textile dyeing units create major environmental problems and issues both in public and textile units. Industrial wastewater treatment is one of the major problems in the present scenario. Though, the physical and chemical methods offer some solutions to the problems, it is not affordable by the unit operators. Biological degradation is recognized as the most effective method for degrading the dye present in the waste. Research over a period of two decades had provided insight into the various aspects of biological degradation of dyes. It is observed that the white rot fungi have a non-specific enzyme system, which oxidizes the recalcitrant dyes. Detailed and extensive studies have been made and process developed for treatment of dye containing wastewaters by white rot fungi and their enzyme systems. An attempt is made to summarize the detailed research contributions on these lines.

Biodegradation, Environmental↗

PubMed2003

Xylanase production by Ganoderma lucidum on liquid and solid state fermentation.

Ganoderma lucidum, a white rot fungus, was exploited for its potentials to produce xylanase employing shake and solid-state culture conditions. Different culture conditions such as pH, temperature, carbon and nitrogen requirements for its growth and production of xylanase were optimized. The culture media pH 6.0-7.0 and temperatures 30 degrees-35 degrees C significantly promoted the growth as well as xylanase secretion into the media. Xylan and peptone were found to be the suitable carbon and nitrogen sources. Among the different agrowastes used, wheat bran was found to be the best substrate for the test fungus for the production of xylanase than sugarcane bagasse and rice bran in solid-state fermentation.

Electrophoresis, Polyacrylamide Gel↗

PubMed2000

Influence of culture parameters on paper mill effluent decolourization by a white rot fungus Ganoderma lucidum.

Efficacy of a white rot fungus G. lucidum for reduction of colour of paper mill effluent under various growth conditions was evaluated. G. lucidum cultured in IBME medium supported maximum colour reduction on 18th day of fungal growth. The optimization of growth parameters further improved colour reduction. The 18 day old culture at 4 g/l inoculum concentration resulted in maximum decolourization (89%) of the effluent with pH adjusted to 6.5 at 35 degrees C along with maximum reduction in biological oxygen demand and chemical oxygen demand. Relative contribution of lignin peroxidase and laccase to the decolourization of paper mill effluent by G. lucidum was also observed.

Biodegradation, Environmental↗