Nanotech for clean water: an alternative approaches to control water pollution

Wastewater is any water that has been adversely contaminated by organic pollutants, bacteria and microorganisms, industrial effluent or any compound that deteriorated its initial quality.  The recent advances and application of nanotechnology for waste water treatment is dealt briefly in this review. During treatment of municipal waste water it has to consider all aspect related to contamination and has to ensure that water is free from all harmful substances. Nanotechnology has new procedures for the treatment of waste water. These techniques are fabrication of membrane from nanomaterials and use of catalyst for decomposition of noxious compound in water

Screening for exopolysaccharide production from basidiomycetes of chhattisgarh

Polysaccharides extracted from mushrooms have wide applications. Seven species of mushrooms  i.e. Grifola frondosa, Polyporus species 1, Polyporus species 2, Pleurotus sajorcaju, Pleurotus florida, Schizophyllum commune and Jelly species were collected and each species was tested for their polysaccharide producing ability. Among all seven species, Pleurotus sajorcaju produces maximum exopolysaccharide & minimum was produced by Pleurotus florida 1. Polysaccharide production was checked by incubating all seven species in shaking and static conditions. Although 28°C at 150 rpm for 7 and 14 days is the best condition  for exopolysaccharide production from mushroom species. Total biomass (dry weight and wet weight) was also recorded. Maximum biomass was found to be of Schizophyllum commune. Total free glucose produced was also determined and was found to be highest in Pleurotus florida. Natural polysaccharides can play a relevant role in biomedical and pharmaceutical applications, particularly in the field of drug delivery, for their intrinsic biocompatibility and potential low cost