Effects of Wheat Flour Supplementation With Oat Products on Dough and Bread Quality

Sep 17, 2026

Uploaded by McGucket

The research determined how adding oat flour, oat bran, and oat flakes influences wheat flour properties, wheat–oat dough characteristics, and baked product quality. Wheat flour blends were prepared by replacing wheat flour with 5%, 10%, 15%, and 20% oat products, then assessed using wet gluten content, sedimentation value, farinographic and extensigraphic parameters, and baking tests. Higher oat levels reduced sedimentation value and washed wet gluten; water absorption increased on farinograph. Effects depended on wheat flour quality and oat product type, with 5–10% often yielding average baking values. Oat bran and flakes generally improved dough and bread quality more than oat flour.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages6

Reading Time15 min

AccessFree to download

Materials and Methods

Flour samples and preparation

Experimental design and oat product grinding

Results and findings

Gluten, sedimentation, and water absorption effects

Dough extensibility and baking performance

Pol. J. Food Nutr. Sci. 2005, Vol. 14/55, No 3, pp. 281–286 EFFECTS OF WHEAT FLOUR SUPPLEMENTATION WITH OAT PRODUCTS ON DOUGH AND BREAD QUALITY Anna Czubaszek, Zofia Karolini-Skaradziñska Department of Cereal Technology, Agricultural University of Wroc³aw, Wroc³aw Key words: breadmaking, oat flour, bran and flakes, wheat flour The aim of this research was to determine the effects of adding oat flour, bran and flake on the properties of wheat flour, wheat-oat dough and baked products. Two wheat flours of different quality were used in this study as test samples. Blends were made by replacing wheat flour with 5, 10, 15 and 20% of oat products. The blends were analysed for wet gluten content, sedimentation value, farinographic and extensigraphic parameters, and subjected to baking tests. Increases in the percentage of oat products in the blends were observed to be markedly responsible for decreases in the sedimentation value and quantity of wet gluten washed from the blends. Water absorption estimated using a farinograph increased as substitution with the oat product increased. The addition of oat products to weak-quality wheat flour (commercial wheat flour – CWF) extended the peak time. After adding oat products to strong flour (lab-milled flour – LMF), the time to breakdown was shortened. Unlike oat flour, the presence of oat bran and flakes in the dough was responsible for extending the peak time and had a better effect on dough extensibility measured by an extensigraph. Based on the evaluation of dough energy, it was shown that wheat-oat mixes containing 5 and 10% of oat products recorded average baking values. The same percentage of oat products brought about the improvement in loaf volumes baked with CWF, whereas baked products from strong flour (LMF) enriched with oats demonstrated a smaller volume and worse crumb structure than the wheat breads. Wheat-oat dough and bread containing 5 and 10% of oat products were characterised by fairly good quality, whereas oat flakes and bran exerted a more beneficial effect on their quality, compared to oat flour. INTRODUCTION Baked products are the third most important components of staple diets [Cichoñ & Miœniakiewicz, 2001] . Their nutritional value varies and depends on the recipes used in their production. In Poland white wheat and rye flours are used most frequently for breadmaking, even though they are deficient in valuable nutrients present in the coat and aleurone layer of grain. Consequently, baked products should be modified with various additives to balance their nutritional quality and make up for the loss of nutrients during processing [Szajewska et al., 2001] . The cereal which attracts much interest in this context on account of its nutritional value is oats. Its grain is rich in protein and dietary fiber and its content of fatty acids is favourable [Liukkonen et al., 1992] . Wieser et al. [1980] demonstrated that oat flour is much richer in protein than wheat, rye, barley, rice, maize and sorghum flours. The average lipid content of oat grain reaches ca. 5–9%, triaglycerols with a high percentage of unsaturated fatty acids constituting the main fraction [Kawka, 1996] . Anderson and Bridges [1993] emphasised the profound importance of water-soluble dietary fibers in oat flour and bran. According to their results, the incorporation of oat products into a human diet lowers blood cholesterol levels. Thus, oat products may be regarded as valuable additives to wheat flour. However, they may also diversely affect the quality of the baked product owing to various factors such as wheat flour quality, the type and quantity of oat products. Lapveteläinen et al. [1994] reported that a 3% higher protein oat flour additive incorporated into wheat flour caused baked products to have darker crumb structure and worse porosity, as well as affected their aroma. Gambuœ et al.[2001] demonstrated that loaves enriched with 5% of bran were well-risen and their taste rem

FAQs

What was the main objective of the study?

To determine how adding oat flour, oat bran, and oat flakes affects wheat flour, wheat–oat dough, and the quality of baked products.

How were oat products incorporated into wheat flour?

Wheat flour was replaced with 5%, 10%, 15%, and 20% oat products, forming wheat–oat blends for laboratory analysis and baking tests.

Which oat products had the most beneficial impact on quality?

Oat bran and flakes generally exerted a more beneficial effect on dough and bread quality than oat flour, although the impact also varied with wheat flour strength.

Sep 17, 2026

Uploaded by McGucket