Dynamic rheological properties of dough as affected by amylases from various sources


Dogan I.

NAHRUNG-FOOD, vol.46, no.6, pp.399-403, 2002 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 6
  • Publication Date: 2002
  • Title of Journal : NAHRUNG-FOOD
  • Page Numbers: pp.399-403

Abstract

The effect of alpha-amylases from cereal, fungal, and bacterial sources on dough dynamic rheological properties was investigated. Dynamic rheological study of flour-and-water doughs during resting period showed significant changes in dough rheological properties as a function of alpha-amylases. Addition of alpha-amylases caused a time-dependent decrease in G', storage modulus. The enzyme action on starch during baking increased viscous flow properties. These changes were temperature-dependent. The thermal inactivation temperature of alpha-amylase plays an important role in modification of starch. Rheological changes in dough will alter the machinability of the dough and the quality of end products.