Manganese biosorption sites of Saccharomyces cerevisiae.
Experiments conducted by pre-treating the fermentation industrial waste biomass of Saccharomyces cerevisiae with laboratory grade chemicals like formaldehyde-formic acid, ethanol, triethyl phosphite-nitromethane, dithiopyridine and benzene helped in studying the roles played by amines, carboxylic acids, phosphates, sulfhydryl group and lipids present on the cell wall of the biomass in manganese biosorption. Potentiometric titration of S. cerevisiae revealed the presence of carboxyl, phosphate, amine groups. The extent of the contribution of the functional groups and lipids to manganese biosorption was in the order: carboxylic acids > amines > lipids > phosphates. Blocking of sulfhydryl group did not have any significant effect on manganese uptake.
Centre For Environmental Studies, Anna University, Chennai 600 025, Tamilnadu, India.
K
K
Parvathi
R
R
Nareshkumar
R
R
Nagendran
D000327:Adsorption; D000588:Amines / Q000737:chemistry / Q000378:metabolism; D018533:Biomass; D002264:Carboxylic Acids / Q000737:chemistry / Q000378:metabolism; D050356:Lipid Metabolism; D008055:Lipids / Q000737:chemistry; D008345:Manganese / Q000737:chemistry* / Q000378:metabolism; D010710:Phosphates / Q000737:chemistry / Q000378:metabolism; D011199:Potentiometry; D012441:Saccharomyces cerevisiae / Q000737:chemistry* / Q000378:metabolism*; D013438:Sulfhydryl Compounds / Q000737:chemistry / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000378:metabolism
D000588:Amines; D002264:Carboxylic Acids; D008055:Lipids; D010710:Phosphates; D013438:Sulfhydryl Compounds; D014874:Water Pollutants, Chemical; D008345:Manganese