2.4. Uniaxial extension tests
Uniaxial extension tests were performed using a TA.XTplus Texture Analyser (SMS, UK) equipped with the accessory Kieffer Dough &Gluten Extensibility Rig and following the protocol described by the manufacturer (SMS, 1995).
The mold was covered with a thin layer of mineral oil and Teflon strips were placed in the mold to aid sample removal. Immediately after kneading, a portion of dough was pressed in the mold, the excess was trimmed, then the mold was closed and placed in a plastic bag to rest for 45 min at 25 C. The dough strips in the three first and last positions were discarded and the remaining strips (at least 7 for each formulation) were submitted to the uniaxial extension under the following conditions: pre-test speed 2 mm/s, test speed 3.3 mm/s, post-test speed 10 mm/s, distance 75 mm and trigger type auto of 0.2 N. From forceetime curve the resistance to extension (Rext) was the maximum force recorded during the test and the extensibility (E) was the distance traveled by the rig at maximum force.
2.4. Uniaxial extension testsUniaxial extension tests were performed using a TA.XTplus Texture Analyser (SMS, UK) equipped with the accessory Kieffer Dough &Gluten Extensibility Rig and following the protocol described by the manufacturer (SMS, 1995).The mold was covered with a thin layer of mineral oil and Teflon strips were placed in the mold to aid sample removal. Immediately after kneading, a portion of dough was pressed in the mold, the excess was trimmed, then the mold was closed and placed in a plastic bag to rest for 45 min at 25 C. The dough strips in the three first and last positions were discarded and the remaining strips (at least 7 for each formulation) were submitted to the uniaxial extension under the following conditions: pre-test speed 2 mm/s, test speed 3.3 mm/s, post-test speed 10 mm/s, distance 75 mm and trigger type auto of 0.2 N. From forceetime curve the resistance to extension (Rext) was the maximum force recorded during the test and the extensibility (E) was the distance traveled by the rig at maximum force.
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