Evidences for the augmented Cd(II) biosorption by Cd(II) resistant strain Candida tropicalis XTA1874 from contaminated aqueous medium

Sci Rep. 2023 Jul 25;13(1):12034. doi: 10.1038/s41598-023-38485-z.

Abstract

Cadmium is one of the most dreadful heavy metals and is becoming a major toxicant in ground water with increasing concentration above the WHO Guidelines in drinking water (0.003 mg/L). The potential sources of cadmium include sewage sludge, phosphate fertilizers and ingredients like Ni-Cd batteries, pigments, plating and plastics. Cadmium levels are increased in water owing to the use and disposal of cadmium containing ingredients. Water draining from a landfill may contain higher cadmium levels. The authors have tried to evaluate the optimized nutritional conditions for the optimal growth and Cd(II) remediation capacity for a developed Cd(II) resistant yeast strain named Candida tropicalis XTA 1874 isolated from contaminated water-body in West Bengal. By analyzing the optimization conditions, a synthetic medium was developed and the composition has been given in the main text. The strain showed much better Cd(II) adsorption capacity under the optimized nutritional conditions (Mean removal = 88.077 ± 0.097%).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Cadmium / analysis
  • Candida tropicalis
  • Hydrogen-Ion Concentration
  • Kinetics
  • Metals, Heavy*
  • Sewage
  • Water
  • Water Pollutants, Chemical* / analysis

Substances

  • Cadmium
  • Metals, Heavy
  • Water Pollutants, Chemical
  • Sewage
  • Water