Biochemistry by Raymond Ochs

Exercise 5

Related to the previous question, suppose you have equal concentrations of glucose and fructose at room temperature. In both cases, beta-ring forms predominate, but with different percentages. In each case, however, when a reducing sugar measurement is made, the same amount of indicator ion is reduced in each case. Moreover, the amount of directly reacting species for the indicator ion is far less than 1% of the total forms. Explain these findings.