[The food value of protein concentrates made from secondary raw oil sources--oil cakes and groats from corn germ, tomato seeds, safflower and flax].

Protein concentrates from oil cake of tomato seeds and corn bud, and groats of safflower and flax were studied for the content of the main food substances: proteins, lipids, carbohydrates, mineral substances, as well as for the fatty acid lipid spectrum, amino acid composition of proteins and the level of available lysine. In experiments on rats given rations containing protein concentrates from oil raw materials (calorific value 5.9 and 18%) as the only source of protein, the NPUtr coefficient and Dtr were determined. The maximum anabolic effectiveness was recorded with the rations containing 9% of all proteins. NPUtr value of the concentrates from oil raw materials was lower as compared to that of casein. Dtr of the concentrates fluctuated from 73 to 93%, and it was maximal when the protein level was 18%. All the protein concentrates from oil raw materials are promising for human nutrition.