Biology and Medicine

Trujillo-Toledo LE

Publications

• Special Issue Article
  Optimization of Culture Medium for Large-Scale Production of Heterologous Proteins in Pichia pastoris to be used in Nanoscience and other Biotechnological Fields
  Author(s): Pais-Chanfrau JM and Trujillo-Toledo LEPais-Chanfrau JM and Trujillo-Toledo LE
  
  Silver thiosulfate (STS) used in the post-harvest treatment of ethylene sensitive flowers is a potent producer of environmental damage because the silver cation (Ag+) remains in the soil and groundwater describes for long periods and can migrate to drinking water systems and cause health problems in humans. This study presents a novel treatment of wastewater contaminated with STS that includes three steps: i) oxidation of STS by bacteria isolated from sulfur springs of the Ecuadorian highlands which were added to artificial wastewater or wastewater containing STS from floriculture. The results indicate that approximately 60% of thiosulfate is oxidized to sulfate and 10% is absorbed by the bacteria at acidic pH, ii) biosorption of silver cation with fungi pellets of Cladosporium cladosporioides fungi. The adsorption tests show that the maximum adsorption ca.. View More»
  DOI: 10.4172/0974-8369.1000279

  Abstract PDF