CHARACTERIZATION OF DEXTRANS FROM FOUR TYPES OF LEUCONOSTOC MESENTEROIDES

Preparation and characterization of dextran from Leuconostoc mesenteroides.

In conjunction with investigations on the a-l, 6-glucosidic linkage in starch, it was desirable to conduct comparative studies on other substances containing this linkage. The dextran from Leuconostoc mesenteroides, a polysaccharide having predominantly a-1 ,6-glucosidic linkages, was selected to be used directly in these comparative studies and to provide a source of simpler substances contain...

Purification and Characterization of Glucosyltransferases from New Strains Leuconostoc Mesenteroides

The Leuconostoc species require sucrose in the culture medium as an inducer for the elaboration of glucosyltransferase (GTF) and glucans. Among all the reported putification methods, polyethylene glycol (PEG) is a effective and single step purification method for GTF from Leuconostoc mesenteroides. The extracellular GTFs from Leuconostoc mesenteroides L.m.28 and mutant Leuconostoc mesenteroides...

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...

Isolation and characterization of a cryptic plasmid, pMBLR00, from Leuconostoc mesenteroides subsp. mesenteroides KCTC 3733.

A cryptic plasmid, pMBLR00, from Leuconostoc mesenteroides subsp. mesenteroides KCTC 3733 was isolated, characterized, and used for the construction of a cloning vector to engineer Leuconostoc species. pMBLR00 is a rolling circle replication plasmid, containing 3,370 base pairs. Sequence analysis revealed that pMBLR00 has 3 open reading frames: Cop (copy number control protein), Rep (replicatio...

Characteristics of Leuconostoc mesenteroides from Cane Juice.