Process for producing and recovering erythritol from the culture medium containing it.

摘要

A process for producing erythritol by fermentation using micro-organisms and recovering erythritol crystals said process comprising the following steps: a) providing microorganisms producing strain polysaccharide negative erythritol Moniliella tomentosa var pollinis TCV 364 [deposit number MUCL 40385], strain producing less than 1% polysaccharides based on erythritol content, b) preparing a culture medium of fermentation, c) adding the microorganisms to the growth medium of fermentation, d) allowing to grow microorganisms until obtaining the least 50 g / L erythritol in the culture medium of fermentation, e) separating the microorganisms from the fermentation culture, f) concentrating the culture medium free fermentation microorganisms refined to a dry substance higher than 80 % w / w, g) crystallising erythritol, yi) collecting erythritol crystals.