Selecting the right blood glucose monitor for the determination of glucose during the enzymatic hydrolysis of corncob pretreated with different methods

► Ionic liquid, alkaline and dilute acid pretreatments were applied to corncob. ► Blood glucose monitors were used to determine glucose in the enzymatic hydrolyzates. ► Optium Xceed was the most accurate BGM with % error values between 3.9% and 10.5%. ► Accu-Chek Active was the least accurate BGM yielding similar results to DNS method. ► Ionic liquid and alkaline pretreatments gave similar glucose yields.