The results have suggested that dextran produced by CMG713 is of very high molecular weight. Molecular mass distribution of the dextran produced by L. mesenteroides CMG713 with reference to blue dextran and industrial grade dextran was estimated. Dextran from L. mesenteroides CMG713 was eluted earlier than blue dextran and was near to the industrial grade dextran indicating that its molecular mass distribution is approximately 2 million Da (Fig. 6) and nearly close to industrial grade dextran. Previously maltose along with sucrose was used to study its effect on dextran molecular weight and they concluded that maltose had no significant effect on its molecular weight [33]. High molecular weight dextran (Mw > 1,000 kDa) was yielded when sucrose was used as a substrate during fermentation along with oligodextrans (Mw < 10 kDa) [33].