1. Xylanase(EC22.214.171.124): We have explored microbial diversity for isolation of xylanase producing bacteria, their production and application. Two different potent strains producing xylanase have been isolated and identified as Bacillus altitudinis and a novel sp. belonging to Bacillus subtilis group. Xylanase treatment to Kraft pulp has shown 15 % decrease in the requirement of chemical bleaching compounds.
2. Laccase (EC 126.96.36.199): A novel high redox potential laccase has been isolated from a fungal strain identified as Arthrographis sp. The laccase can degrade a variety of textile dyes including indigo. Process for production of laccase using surface culture reactor has been developed. The laccase has been tested for its ability to bleach denim fabric in industrial set-up.
3. Isolation of Quorum sensing Inhibitor (QSI) Using Chromobacterium violaceum based screen, a Streptomyces strain producing QSI activity has been isolated. Isolation, purification and characterization of the molecule is in progress