Extensograph® -E
Extensograph® -E
AACC 54-10
ICC 114/1
ISO 5530-2
The standard instrument for measuring flout quality: stretching behavior -- baking characteristics -- influence of additives -- rheological optimum...
The application of constant flour qualities is of decisive importance for the milling and baking industries. Different baking products make different demands to the flour quality.
The Brabender® Extensograph®-E measures the stretching properties of dough, in particular the resistance to extension and the extensibility, to make reliable statements about the baking behavior of the dough.
Like no other instrument, the Extensograph®-E shows the influence of flour additives like ascorbic acid, enzymes (proteinases), and emulsifiers and, thus, permits to determine the rheological properties of each flour and to adjust the "rheological optimum" for the respective purpose.
Test Procedure
The sample dough is prepared from flour, distilled water, and salt in the Farinograph® or Farinograph®-E. This ensures objectivity and reproducibility during dough preparation and a constant starting consistency.
After a certain rest time, the Extensograph®-E stretches the dough until rupture. The force exerted is measured and recorded. In the standard method, this procedure is repeated three times.
The accepted short method allows to save time with reduced proving times that are similar to those in production - the results are nearly the same as with the standard method.
Extensogram
The Extensogram recorded on-line and represented as a color diagram on the monitor shows the exerted force as a function of the stretching length (time).
The shape of the measuring curve and its variation during the individual proving times, the area below the curve as well as the numerical values of the different evaluation points allow to make reliable and reproducible statements as to the flour quality and the suitability of the flour for a certain task. Furthermore, the influence of flour additives on the flour characteristics can be made evident.
DOWNLOAD
