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Документ Effect of structure forming additives on the of water bond forms in gluten-free macaroni dough made from corn flour(2017) Rozhno, Oleksandr; Yurchak, Vera; Holikova, TatianaThe water bond forms in dough for gluten-free macaroni products made from corn fine meal flour with addition of different structure forming additives - xanthan, carboximethylcellulose (CMC), gelatin and dry egg white - have been investigated. Research shows that speed of drying of macaroni products made from corn flour with xanthan, gelatin and dry egg white (till first critical moisture (W1 cr)) is higher that contribute to apply harder drying regimes in first period. W1 cr for corn macaroni samples is 28.70-23.40 % that is less than in the wheat products.Документ Water bond forms in the dough and sorbtion properties of gluten-free macaroni products made from corn flour(2017) Rozhno, Oleksandr; Yurchak, Vera; Holikova, TatianaAuthors have developed macaroni products made from fine meal corn flour with usage of structure forming additives of different nature and without them. The correlation of water of different bond forms in macaroni dough with different structural forming additives and without them has been investigated. Results show that water of macro and microcapillaries is prevalent in the corn dough – 39.40 - 54.69 % of overall amount of water. Osmotically bound water amounts 18.75 – 28.04 %, adsorbically bound water -18.49 – 23.13 % of overall amount of water. Absorbtion capability of the macaroni products and amount of adsorbed water have been determined. The micropore structure of these samples was characterized. The correlation between structure of macaroni products, both amount of adsorbed moisture and energy of sorption were proven. The amount of monomolecular layer’s moisture for gluten-free corn macaroni products is significantly higher – in 1.2 – 1.5 times – when compared to the wheat macaroni products. Due to this corn samples obtain higher energy of moisture sorption. The correlation between structural characteristics of the macaroni samples and its quality was shown.Документ Rheological properties of gelatine solutions for production of gluten-free pasta(2016) Rozhno, Oleksandr; Podobiy, Olena; Yurchak, VeraFor formation of gluten-free pasta products of corn meal that does not form gluten, the selection of a structure forming substance, determining the way of its introduction and dosage on the basis of the research of the rheological properties of its solutions and impact on the quality of the goods are important.The rheological properties of colloid gelatine solutions with the concentration of 0,50-1,25%, which are prepared at the water temperature of 20°С and 40°С and the swelling duration of 40 min and at 60°С without the swelling are examined. The viscosity of these solutions is determined by the Reotest-2 viscometer at the temperature of 20°С. According to the data obtained, the rheological viscosity and fluidity curves are built and the rheological properties of the solutions are calculated. The impact of the forming substance solutions on the quality indicators of pasta products is determined. Для формування безглютенових макаронних виробів з кукурудзяного борошна, яке не утворює клейковину, важливим є вибір структуроутворювача, визначення способу його внесення та дозування на підставі вивчення реологічних властивостей його розчинів та впливу на якість виробів.Досліджено реологічні властивості колоїдних розчинів желатину концентрацією 0,50-1,25%, приготовлених за температури води 20°С та 40°С і тривалості набухання 40 хв. та за 60°С без набухання. Визначали в’язкість цих розчинів на віскозиметрі Реотест-2 за температури 20ºС. За отриманими даними будували реологічні криві в’язкості та плинності, розраховували реологічні характеристики цих розчинів.Визначено вплив розчинів структуроутворювачів на показники якості макаронних виробів.