Ccl. a Note on the Dextran Produced from Sucrose by Betacoccus Arabino- Saceous Haemolyticus by Maurice Stacey and Frederick Robert Youd
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Characterization of the Dextran Produced by Leuconostoc mesenteroides from Date Fruit Extract
In the present study, the production of dextran from date extract and sucrose as carbon sources by the bacterium Leuconostoc mesenteroides NRRL B512 (f) was investigated. In comparison to blue dextran (Mw≈2000 Da), dextran molecular weight was reduced (Mw2000 KDa). Flow behavior indices of dextran solutions from date extracts were investigated and rheological parameters were evaluated at concen...
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Many extensive studies have been made on the glucose polymers, known as dextrans, whichare produced from sucrose by the transglucosidase activity of species in the genus Leucomostoc. Less work has been described, however, on similar polysaccharides produced from sucrose by streptococcal species. Niven, Smiley & Sherman (1941) reported that various strains of Streptococcus bovis, of unrecorded o...
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A preliminary paper (1) reported that a serologically reactive polysaccharide of dextran nature is produced from sucrose through the action of an enzyme or some similar heat-labile agent contained in sterile filtered extracts of Leuconostoc mesenteroides. The object of the present paper is to describe the preparation of the sterile extracts and to compare the chemical and serological properties...
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