Effects of Oat Flour on Dough Rheology, Texture and Organoleptic Properties of Taftoon Bread

Wheat flour was substituted with oat flour by 0, 10, 20, 30, and 40% to investigate the effect on dough rheology and bread sensory quality and texture. Water absorption and dough development time in oat composite doughs increased with an increasing level of oat flour, whereas dough resistance, extensibility and bread firmness decreased. Dough softening increased with an increased level of oat flour while the addition of oat flour improved bread shelf life and reduced the yellowness of bread. Breads produced with up to 20% oat flour were stable and with good quality as indicated by sensory evaluation. Oat flour had larger particle size in comparison to wheat flour. Breads produced with 30% and 40% oat flour had a bitter after taste, unacceptable to the sensory panelists.

[1]  S. Laakso,et al.  Enzymatic oxidation of hexanal by oat , 2003 .

[2]  J. Harwood,et al.  A comparison of lipase activity in various cereal grains , 1992 .

[3]  D. Doehlert,et al.  Effects of Oat Grain Hydrothermal Treatments on Wheat-Oat Flour Dough Properties and Breadbaking Quality , 1998 .

[4]  M. Nyman,et al.  Dietary fibre in fermented oat and barley β-glucan rich concentrates , 2005 .

[5]  B. Kettlitz,et al.  R. C. Hoseney:Principles of Cereal Science and Technology. 327 Seiten, zahlr. Abb. und Tab. American Association of Cereal Chemists, Inc., St. Paul, Minnesota, 1986. Preis: 46,95 $ (39,95 $ for AACC members) , 1987 .

[6]  Yeshajahu Pomeranz,et al.  Bread Science and Technology , 1971 .

[7]  F. Ronda,et al.  Effect of dietary fibre on dough rheology and bread quality , 2003 .

[8]  K. Chang,et al.  Effect of commercial oat bran on the characteristics and composition of bread , 1987 .

[9]  A. Kramer,et al.  Fundamentals of quality control for the food industry , 1966 .

[10]  M. Solberg.  Fundamentals of quality control for the food industry , 1967, American Potato Journal.

[11]  E. Puolanne,et al.  High-protein oat flour functionality assessment in bread and sausage , 1994 .

[12]  J. A. Rojas,et al.  Influence of hydrocolloids on dough rheology and bread quality , 2001 .

[13]  H. Köksel,et al.  Unexpected strengthening effects of a coarse wheat bran on dough rheological properties and baking quality , 1997 .

[14]  R. Hoover,et al.  Physicochemical properties of Canadian oat starches , 2003 .

[15]  Miss A.O. Penney.  (b) , 1974, The New Yale Book of Quotations.

[16]  G. Vogt,et al.  Effects of storage and heat processing on the content and composition of free fatty acids in oats , 1995 .

[17]  R. Schultes.  Oats: Chemistry and Technology , 1987, Economic Botany.