Abstract
This study was focused on multigrain flours consisting on wheat-rye-triticale and wheat-rye-hulled oat, obtained by using an experimental Buhler roller mill after blending the cereals at different levels. For all investigated multigrain blends the extraction yield of the first reduction passage was lower compared to wheat. The flour yields at the break roll passages decreased in the flowing order: blends with triticale, wheat and blends with hulled oat. The multigrain milling resulted in increased ash, crude fiber and fat contents, and decreased protein content compared to wheat. The solvent retention capacity profile varied with the type of blend, and important correlations were established with Mixolab parameters, mainly related to starch gelatinisation and breakdown. Texture measurements performed on breads prepared with multigrain flours indicated increased hardness and decreased springiness values with increasing the wheat substitution level. These results might allow better exploitation of different cereals through the efficient milling of multigrain blends. Multigrain milling could be a way to improve the milling quality and performance of some cereals like triticale, hulled oat and hulled barley. Blending these cereals with wheat in different ratio followed by milling with roller mill can result in multigrain flours with different extraction rate and functional profile. Multigrain flours or some mill streams can be used for obtaining particular baked products.
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