2.3. Instrumental analyses of texture
The extruded snacks were analyzed by means of the TAXT2i texturometer (Stable Micro Systems, Godalming, UK), using a load cell of 5.0 kg and the following tests and probes:
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Compression test: an aluminum cylinder probe ( Fig. 2A) was used, with diameter 25 mm, test speed of 1 mm/s and compression of 50% of the sample height. The necessary force to compress 50% of the sample height, in newtons, was taken to be the result from the test.