TECHNOLOGICAL FEATURES OF MILLING AND FRACTIONATION OF FLAXSEEDS

Summary. The optimal parameters of milling and fractionation of flaxseeds were substantiated. It was found that the hull fraction with the highest content of lignan secoisolariciresinol diglucoside SDG was obtained when flaxseeds were grinded using a rotatory impact continuous operation mill at the rotation 1380-1640 rpm. Studies have shown that with the increasing of the rotor speed the number of unbriken seeds decreased. However, due to the fact that the shells are crushed more, they become more difficult to separate from the cotyledons. For identification and quantification of SDG the HPLC-MS method was used. It is found that the optimum separation membranes and cotyledon fraction occurs at sifting milled seeds sequentially through the sieves having meshes of 1 and 0.5 mm. The technology of industrial production of lignans-containing fraction and flour on the basis of flaxseeds processing were proposed. This technology includes milling flaxseeds at the rotation 1380-1640 rpm, with subsequent 2% silicon dioxide addition and stepwise sieving using sieves with the mesh size 2 mm. To use a fraction membranes high in lignans as raw material for biologically active additives to food it needed additional enforcement-ground to a size not more than 0.4 mm (technological features of capsulation). The developed technology allowed getting with maximum yields of lignans-containing fraction (10% yield) and flaxseed flour (80% yield)

Biological potential of jerusalem artichoke as a feedstock for food and pharmaceutical industries

Studies aimed to import pharmaceuticalproducts, as well as to strengthen the food security of the Republic of Belarus, are highly relevant. In this connection an universal culture of Jerusalem artichoke is of interest, the value of which is determined due to the possibility of its use in feed, food and pharmaceutical industries. The paper presents the productivity research of Jerusalem artichoke varieties with different growing seasons, the estimation of mineral composition of tubers, the content of inulin as the most valuable component of mentioned agricultural crops was determined