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  • Ескіз
    Документ
    Studying the possibility of using enzymes, lecithin, and albumen in the technology of gluten-free bread
    (2019) Dotsenko, Viktor; Medvid, Irina; Shydlovska, Olena; Ishchenko, Tatiana
    The comprehensive approach to the technology of bread for people suffering from celiac disease by applying amylolytic enzymes, lecithin, and dry egg albumen was scientifically substantiated. The effect of amylolytic enzymes on sugars accumulation during the hydrolysis of rice flour starch was established. It was proved that the use of enzymes contributes to the formation of mono-and disaccharides in quantity of 5.5–6 %, which are essential for the intensification of microbiological processes in dough. The improvement of gas production in dough during the application of the enzymatic modification of flour starch during fermentation was detected.With the aim of improving the quality of the dough semi-finished and finished products, the expedience of using surfactants was substantiated. The regularities of the influence of sunflower defatted lecithin on properties of dough and quality characteristics of bread with enzymes were determined. It was established that the introduction of phospholipid into dough using the enzymatic modification of starch flour contributes to the improvement of gas formation in it and causes an increase in specific volume and porosity of finished products.To ensure the porous structure of the crumb, the additional use of dry egg albumen in the technology of rice bread was proposed. It was established that the preliminary recovery of albumen when making dough with enzymes and lecithin contributes to its better leavening, which provides high quality indicators of the finished products. It was proved that the use of sunflower defatted lecithin and whipped egg albumens during dough kneading with previously conducted hydrolysis of starch flour by α-amylase and glucoamylase leads to a significant increase in its gas-retaining abilities and contributes to increasing its running. Given the reduction in viscosity of the dough with the addition of selected raw materials, it is recommended to manufacture pan bread.The influence of application of the enzymatic modification of rice flour starch, lecithin, and egg albumen on the process of gelatinization of water-flour suspensions was studied. The identified regularities make it possible to predict an increase in the shelf life of the finished bread.
  • Ескіз
    Документ
    Дослідження впливу амілолітичних ферментів на мікробіологічні процеси в тісті та якість рисового хліба
    (2018) Медвідь, Ірина Миколаївна; Шидловська, Олена Броніславівна; Доценко, Віктор Федорович
    У статті досліджено вплив ферментів α- амілази та глюкоамілази на процеси дозрівання рисового тіста та якість готового хліба. Встановлено, що застосування ферментативної модифікації крохмалю рисового борошна сприяє інтенсифікації перебігу мікробіологічних процесів в тісті, що призводить до поліпшення якості готових виробів. В результаті проведених досліджень визначено доцільність розроблення заходів, спрямованих на покращення пружно-еластичних властивостей тіста з рисового борошна з метою зменшення втрат вуглекислого газу, утворюваного при бродінні. The influence of α-amylase and glucoamylase on the rice dough maturation and quality of rice bread has been studied in the article. It has been stated, that the use of fermentative modification of starch in the rice flour helps to intensify the course of microbiological processes in the dough that leads to improvement of quality of readymade products. As a result of research, the expediency of elaboration of activities aiming to improve elastic properties of rice flour dough to reduce carbon dioxide losses, formed during fermentation.
  • Ескіз
    Документ
    Influence of fermentative modification of rice flour starch on bread quality for patients with celiac disease
    (2017) Medvid, Irina; Shydlovska, Olena; Dotsenko, Viktor
    The expedient use of ferments with amylolytic activity for carbohydrate composition modification of rice flour aiming to improve the quality of gluten-free bread is scientifically based. Hydrolyzation of rice flour starch with the help of amylolytic ferments in preparation of a bread for patients suffering from celiac disease helps to intensify microbiological processes in the dough, to improve quality scores of ready-made products and prolonging of their expiration date.
  • Ескіз
    Документ
    Дослідження процесу зцукрювання у виробництві харчового сиропу
    (2013) Карпович, Інна Віталіївна; Крапивницька, Ірина Олексіївна; Брик, Оксана Іванівна
    Представлено результати дослідження ефективності використання глюкоамілазних ферментних препаратів для зцукрювання глюкозного розчину, одержаного з пшениці. Встановлено оптимальні технологічні параметри проведення процесу. Over decades starch syrup production in Ukraine was in the state of crisis. During this time, production of edible starch has almost decreased by 4 times. The most powerful company nowadays is JSC «IDnipro Starch and Syrup Mill» which produces native starch from corn, starch syrup, gluten, glucose, oil and food. Starch and starch products technology has recently undergone significant changes. New enzymes and types of adsorbents start to be used in production. Due to wide application of enzymes in the world glucose-fructose and edible syrups, molasses with different carbohydrate composition, starch sugar and also more than 15 kinds of glucose products have been produced. Technologies of fructose-content syrups are based on three enzymatic reactions: saccharification starch diluting by enzyme — bacterial amylase; diluted starch saccharification by enzyme — amyloglucosidase; isomerization of glucose into fructose through glucose — izomerase. In order to study saccharification hydrolysis process after suspended impurities removal from it a series of experiments has been carried out to choose glucoamylase enzyme preparation and establish its optimal quantities, determine of the process duration. Therefore, there is a need to improve starch technology using glucoamylase enzymes for saccharification glucose solution yielded from wheat.