Abstract
The paper focuses on how to improve the nutritional value of traditional low moisture bakery products from wheat flour by using flour from hemp oilcakes obtained by solvent extraction of oil. It has been considered how to provide enough raw materials in the case of wide use of hemp and products of its processing in the food industry. The main tendencies in cultivating and applying industrial hemp in Ukraine and worldwide have been outlined; the chemical composition of hemp seeds (the plant’s part mainly used in food products) has been analysed and characterised; and it has been suggested how hemp by-products can be used in the bakery technology. It has been studied whether flour from hemp extraction cake can be used in the technology of low-moisture bakery products such as breadsticks. It has been found that 10, 15, and 20% of hemp flour added to wheat flour increase the water absorption capacity of the resulting flour blend by 3, 6, and 13% respectively, in comparison with the control. If hemp flour is included in the formulation of breadstick dough, the slackness of a dough ball increases by 6.1, 7.4, and 11%, and this increase is bigger, the higher the hemp flour content in the formulation is. However, it has been found that if the flour component of the recipe is partly replaced with hemp flour, this changes the growth medium of yeast cells and lactic acid bacteria and thus leads to a 23, 16, and 30% decrease in the amount of carbon dioxide formed during the 180 min fermentation period of the dough. The 6, 16, and 40% increase of titratable acidity in the samples analysed is due to the content of biogenic and oligobiogenic elements in the flour mixture, which satisfy the needs of lactic acid bacteria rather than those of baker’s yeast. The quality assessment of the finished products by their sensory and physicochemical characteristics has shown how promising it is to use hemp flour in the breadstick technology, provided that the recipe and the production parameters are modified to improve the products’ rheological properties and quality.
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