• Leonid Kaprelyants Odessa National Academy of Food Technologies
  • Liliia Pozhitkova Odessa National Academy of Food Technologies
  • Mykola Buzhylov Odessa National Academy of Food Technologies
Keywords: wheat bran, microstructure of wheat bran, fermentation, lactic acid bacteria, enzymatic hydrolyses, dietary fiber, bioactive compounds, antioxidant activity


Last time the food industry pays the great attention to questions, connected with changing existing technologies for raising the efficacy of the raw materials complex processing and increasing the output of high-quality products and food ingredients with a minimal amount of waste. Cereal crops are the most reach source of functional ingredients and main component in the human food ration. The technological process of cereal crops processing at enterprises is closely connected with creating a great number of secondary raw material resources and its further utilization.

For confirming the efficacy of using secondary products of grain processing as cheap raw material resources of dietary fiber and physiologically functional ingredients, there is characterized the accessibility of their biotransformation that gives a possibility to get biologically active substances of different chemical nature with a wide spectrum of physiological effects.

Secondary products of cereal crops processing (bran) are multi-component substrates, formed of different histological layers of wheat grains after comminution, consisted of (external pericarp, internal pericarp, grain coat, hyaline and aleurone layer of a grain coat).

Wheat bran is rich in dietary fiber, nutritive and phytochemical substances, that is why, it is most often used for feeding animals. But for today there are important proofs of using it in the food industry.

The development of new innovative technologies, modern achievements in microbiology and biotechnology have an important value for secondary products of grain processing, because they allow to conduct directed technological processes at the qualitatively new level that provides using soft regimes of vegetable raw materials processing, allowing to preserve natural biologically active substances and nutrients.

The modeling of the combined complex processing that includes enzymatic hydrolysis and fermentation by microorganisms improves technological, sensor and also nutritive and physiologically functional properties of wheat bran at the expanse of: bioavailability increase of phenol compounds, vitamins and minerals, assimilability of proteins and decrease of the content of anti-nutritive compounds.

Enzymatic preparations allow to use vegetable raw materials rationally, to intensify technological processes, in such a way increasing the output of biologically active substances and to widen the assortment of created products. The process of wheat bran formation results in increasing the nutritional value, enriching the biopolymeric complex with probiotic microorganisms and prebiotic substances.

Based on the structural peculiarities and multicomponent composition of wheat bran, presented and studied in the article, it has been established, that the use of the directed modification allows to get functional ingredients and products with set properties that influence the human health favorably. So, wheat bran must be used not only in agriculture as a cattle fodder, but also in the food industry.


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Author Biographies

Leonid Kaprelyants, Odessa National Academy of Food Technologies

Department of Biochemistry, Microbiology and Physiology of Nutrition

Liliia Pozhitkova, Odessa National Academy of Food Technologies

Department of Biochemistry, Microbiology and Physiology of Nutrition

Mykola Buzhylov, Odessa National Academy of Food Technologies

Department of Biochemistry, Microbiology and Physiology of Nutrition


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