Sugar Beet Lab Report

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Introduction: Leuconostoc mesenteroides: It is an epiphytic bacterium that is found in natural environment widely, it plays an important role in several food and industrial fermenting companies. Leuconostoc mesenteroides is facultative anaerobe which requires amino acids and complex growth factors. [1] Lactic acid bacteria (LAB) variety which includes Leuconostoc species are found on crop plants L. mesenteroides is the most abundant LAB species to be found on fruits and vegetables and responsible for the initiation of sauerkraut and other fermentation of vegetables. Its starter cultures are also used in bread dough and dairy fermentation. Heterolactic fermentation is carried out under microaerophillic conditions. Glucose and other hexose sugars are converted into D-lactacte, CO2 and ethanol with a combination of the hexose monophosphate and pentose pathways.Including other metabolic pathways that are conversion of citrate to diacetyl and acetoin and production of levan from sucrose and dextrans. There are many viscous polysaccharides produced by L. mesenteroides and are the cause of losses and processing problems in the production process of sugar beet and sugar cane It has been more than 50 years since the commercial production of Dextrans and levans by L. mesenteroides, and the commercially synthesized Dextrans and levans are used…show more content…
It is a group of high molecular mass polysaccharides that are synthesized from sucrose and composed of chains of D-glucose units. Dextran is produced by species of Leuconostoc, streptococcus and Acetobacter. Hucker and Pederson were the first who reported the production of dextran from sucrose by strains of Leuconostoc species. It has been reported the formation of dextran from different strains of bacteria that were primarily Leuconostoc

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