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  • Gel mobility  (1)
  • Key words Wheat flour  (1)
  • Rapid Visco Analyser  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    European food research and technology 209 (1999), S. 122-125 
    ISSN: 1438-2385
    Schlagwort(e): Key words Wheat flour ; Rheology ; Gluten denaturation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Abstract  The effect of steaming on the various rheological characteristics of wheat flour dough was studied. Steaming of flours at atmospheric pressure for 15 min completely denatured the gluten and reduced the water absorption capacity from 58.4% to 45.0%. Even steaming for just 5 min increased the resistance to extension considerably from 500 BU (Brabender Units) to 1000 BU and the ratio figure (resistance to extension/extensibility) from 4.2 to 27.4, indicating stiffening of the dough. The dough made from steamed flour had a higher hardness value of 91.1 N than the dough made from raw wheat flour which had a value of 51.1 N. The pasting characteristics of flour steamed for 15 min measured in a Rapid Visco Analyser showed increased peak viscosity from 218 rapid visco units (RVU) to 257 RVU as well as increased cold paste viscosity from 175 RVU to 200 RVU and increased hot paste viscosity from 94 RVU to 108 RVU for flour steamed for 15 min.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    European food research and technology 210 (1999), S. 119-122 
    ISSN: 1438-2385
    Schlagwort(e): Key words Rheology ; Wheat flour ; Rapid Visco Analyser
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Abstract  The blended dough made from raw wheat flour and wheat flour steamed for 15 min at a ratio of 1 : 1, along with minor ingredients (salt, oil) showed reduced farinograph water absorption capacity. The stability of the blended dough with oil was reduced while the mixing tolerance index increased. The inclusion of salt in the blend increased the resistance to extension and also the area under the curve. The hardness and cohesiveness measured by means of texture profile analysis decreased with the inclusion of oil in the blend, while increasing with the addition of salt. The Rapid Visco Analyser used to measure pasting characteristics showed a peak viscosity which increased for the blend with salt, but decreased for that with oil. Similarly, the hot paste viscosity, cold paste viscosity and area under the curve increased for the blend with salt, but decreased for the blend with oil.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    European food research and technology 210 (2000), S. 293-298 
    ISSN: 1438-2385
    Schlagwort(e): Key words Rheology ; Gel mobility ; Rapid visco analyser
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Abstract  Blending of native wheat flour (NWF) and steamed wheat flour (SWF) in the ratio of 1 : 1was found to give good binding between the filling and coating, and improve the overall quality of the coated products. The apparent viscosity increased with increase in batter concentration (30, 33 and 36%) of all the three blends, namely NWF+SWF (5 min steaming period), NWF+SWF (15 min steaming period) and NWF+SWF(30 min steaming period). The yield stress and consistency index also increased with increase in batter concentration for all three blends. The gel mobility increased with increased steaming period of the blends. The rapid visco analyser used for measuring the pasting characteristics of the blends showed an increase in peak viscosity from 218 to 243 rapid visco units (RVU), in hot pasteviscosity from 81 to 100 RVU and in cold paste viscosity from 175 to 185 RVU. The area under the curve also increased from 1963 to 2134 RVU/min for the blends when compared with native wheat flour.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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