Dough Rheology as a Function of Flour Treatment

3. Extensibility and Resistance
The Extensograph and the Alveograph have many properties in common.
Nevertheless it is interesting to note that most inquiries on optimization
concern the Alveogram. In particular, wishes for modification include the extensibility
and resistance of the Extensogram, the L-value and the P-value of the
Alveogram, and also the P/L ratio of the Alveogram. Sometimes the areas beneath
the curves (equivalent to the energy input) need to be modified.
Increasing the resistance of the Extensogram or the P-value of the Alveogram does not seem to be difficult, since hardly any inquiries ask for it. And in fact applying oxidizing agents effectively increases both. Fig. 141 depicts the effect of ascorbic acid and potassium bromate respectively on the resistance of the Extensogram. As potassium bromate is a rather slowly-reacting oxidizing agent, its effect can hardly be observed after only a short incubation time (Fig. 141, curve PBr 45'). Consequently, its impact…
Increasing the resistance of the Extensogram or the P-value of the Alveogram does not seem to be difficult, since hardly any inquiries ask for it. And in fact applying oxidizing agents effectively increases both. Fig. 141 depicts the effect of ascorbic acid and potassium bromate respectively on the resistance of the Extensogram. As potassium bromate is a rather slowly-reacting oxidizing agent, its effect can hardly be observed after only a short incubation time (Fig. 141, curve PBr 45'). Consequently, its impact…