In reaction mixtures containing culture filtrates, varying amounts of levan are produced concomitantly with dextran. These amounts are usually small. Since dextran is precipitable with lower concentrations of alcohol than those needed for levan, this provides a convenient method for the recovery of either one free of the other (HAMDY et al., 1954). Dextran produced using the whole-culture method (LEATHERS, 2002; ROBYT, 1985; ALSOP, 1983) may have the cell debris removed through centrifugation. This conventional process has the disadvantage of propagating cells in comparison to a cell-free culture in which the cells are centrifuged prior to dextran production.