In beer samples the main disaccharides are maltose (ca. 14%
of total wort carbohydrate) and sucrose (ca. 5% of total wort carbohydrate).
Much of the sucrose emanates from malt itself, whilst
ca. 97% of the maltose present is produced in the mash tun. Typical
levels of maltose found in beer are 0.7–3.0 g/l [48]. Table 3 depicts
maltose amounts analyzed by using both biosensing and spectrophotometric
DNS method in two brands of beers. Data were given as the
average of three measurements and found to be in good agreement
with DNS method. Additionally, standard addition method was used
to test the effect of matrix nature and no influence was noticed on the
response (Table 4).