IN362803: Process for production of crytalline xylitol using Pichia caribbica (hq222812) and its application for quorum sensing inhibition in model gram negative bacterium

The invention relates to a fermentation process for production of xylitol from D-xylose using a novel yeast species, Pichia caribbica BY2 (deposited at MTCC, IMTECH, Chandigarh and accession no. MTCC 5703), involving an improved downstream processing for separation of xylitol from its fermentation broth in pure crystalline form and in quantitative yield. The invention further relates to the use of Pichia caribbica BY2 synthesized xylitol as a quorum sensing antagonist in gram negative organisms.