Abstract
The dextrans elaborated by Leuconostoc mesenteroides NRRL B-1415 (dextran A) and NRRL B-1416 (dextran B) have been shown to have branched structures. Dextran A contains 14%(α-1 → 4) branching glucose units. Dextran B contains 17%(10%α-1 → 3 and 7%α-1 → 4) branching glucose units.