Erythritol Fermentation，Separation And Extraction Of Process

Erythritol production by microbial fermentation is one of the focuses in modernfermentation process.Microbial fermentation method ofproducing erythritol is one ofthe research hotspots of modern fermentation engineering， namely by osmopHilicyeasts in suitable culture medium for aerobic fermentation broth， then throughseparation， extraction， purification so as to obtain the invented crystalproducts.Microorganisms in bioreactors in the smooth growth of synthetic reaction is acomplex biochemical process， affected by many factors. In addition to its ownproduction performance were outside， but also by the culture medium composition，culture medium proportion， seed quality and fermentation conditions and otherfactors affecting the control. Therefore， for a production strains， the fermentationprocess， maintain a suitable environment for the growth of microbial cells， therebyaffecting the metabolism and the synthesis of target products， give full play to spawnproduction capacity， implementation high yield is extremely important. Optimumenvironmental conditions including medium， culture temperature， pH， dissolvedoxygen and seed pHysiological conditions， in which the culture medium optimizationand design in the first place. In the field of industrial fermentation， all withoutexception is medium on microbial fermentation product or biomass yield purposes anddesign. Culture medium components significantly influence the fermentation productconcentration， conversion rate and production strength， their costs directly affect thewhole economic benefit of fermentation process. At the same time， mediumcomposition also affects the downstream processes product separation and extractionof difficult easy degree and cost.In recent years， along with the domestic and foreign on microbialtransformation of erythritol production by the deepening of the research， in thefermentation liquid of erythritol production had bigger rise. But after fermentationtransformation liquid also contains is not the conversion of sugar， pigment， ions andother substances， must be purifiedThis research takes a strains of the laboratory screening of erythritol producingstrains of Candida lipolytica sets out， through the single factor experiment furtheroptimization of erythritol fermentation technology condition，in the extraction processresearch for erythritol purification， crystallization process. In order to reduceerythritol production costs for the purpose of. For erythritol in China to promote the use and lay a solid foundation of science and technology.