The results also show that the decrease in the concentration of
the cellobiose-fructose was in correlation with an increase in the
concentration of cellobiose-sucrose that achieved amaximum concentration
of 3.05% (2.36 g/L) and 2.13% (3.31 g/L) at 12 and 48 h,
respectively, in maple syrup 15◦Bx and 30 ◦Bx-based systems. An
increase in the levan yield as the reaction proceeded from 12 to 48 h,
was also obtained reaching a yield of 12.42% (9.62 g/L) and 7.39%
(11.45 g/L) at 48 h in maple syrup 15◦Bx and 30◦Bx-based systems,respectively. These resultsmayreveal the use of cellobiose-fructose
as an acceptor and explained partially the decrease of its concentration
at the late stage of reaction. The shift of reaction equilibrium
toward the hydrolysis may also explain the decrease of cellobiosefructose
concentration.