Abstract: In a first aspect of the present invention, there is provided a fermentation process for fermenting a carbon source comprising glucose and one or more oligosaccharides in the presence of a microorganism capable of fermenting glucose into a fermentation product, said process comprising the steps of: (a) forming an initial fermentation broth comprising the carbon source and the microorganism; (b) fermenting the broth under conditions suitable to ferment the glucose; (c) adding to the broth an effective amount of at least one active enzyme capable of depolymerizing the one or more oligosaccharides; and (d) recovering the fermentation product; wherein the carbon source comprises dextrose greens.

Abstract: The present invention discloses a process for producing sodium 2-keto-L-gulonate from sorbitol and recovering 2-keto-L-gulonic acid in high recovery yields, by controlled cation exchange treatment of the micro-organism free fermentation broth and/or adjusting PII of said purified fermentation broth, followed by direct crystallisation of 2-keto-L-gulonic acid monohydrate.

Abstract: The present invention discloses a process for producing sodium 2-keto-L-gulonate from sorbitol and recovering 2-keto-L-gulonic acid in high recovery yields, by controlled cation exchange treatment of the micro-organism free fermentation broth and/or adjusting Ph of said purified fermentation broth, followed by direct crystallization of 2-keto-L-gulonic acid monohydrate.

Abstract: The present invention discloses a process for producing erythritol by fermentation using a polysaccharide negative erythritol producing strain and recovering erythritol crystals by direct crystallisation from the unrefined micro-organism-free fermentation broth. Direct crystallisation of erythritol is performed at dry substance higher than 80% w/w. Recovery of erythritol crystals is at least 85% and purity of erythritol crystals is at least 99% w/w.

Abstract: The present invention discloses a process for producing erythritol by fermentation using a polysaccharide negative erythritol producing strain and recovering erythritol crystals by direct crystallization from the unrefined micro-organism-free fermentation broth. Direct crystallization of erythritol is performed at dry substance higher than 80% w/w. Recovery of erythritol crystals is at least 85% and purity of erythritol crystals is at least 99% w/w.

Abstract: The present invention discloses a process for producing erythritol by fermentation using a polysaccharide negative erythritol producing strain and recovering erythritol crystals by direct crystallization from the unrefined micro-organism-free fermentation broth. Direct crystallization of erythritol is performed at dry substance higher than 80% w/w. Recovery of erythritol crystals is at least 85% and purity of erythritol crystals is at least 99% w/w.