The article is devoted to the improvement of the curd mass production technology developed by the authors earlier, in particular, the selection of the fruit component to be added to the product to improve its nutritional qualities. Besides, the organoleptic and physicochemical characteristics of the proposed product have been evaluated and its fatty acid composition has been analyzed in order to confirm the beneficial properties of the curd under consideration. The relevance and novelty of the topic lies in the use of a fruit component that has not been previously used in such technologies, as well as in the creation of the product having a balanced content of nutrients, vitamins, and antioxidants.
The article is dedicated to the study of the raw materials in the Republic of Crimea, as well as to the assortment of enriched dairy products and the development of an enriched curd product. The relevance and novelty of this technology lies in the fact that the oil obtained from grape seeds is used as the added component. It has therapeutic properties that have been repeatedly proven. The objectives of the work were to substantiate the production technology of the curd product with the addition of grape seed oil for therapeutic purposes and to develop the technology, which will allow to obtain a product with high nutritional properties, the physicomechanical structure required by the standard, as well as to minimize the loss of beneficial components that make up grape seed oil.
The research has shown that clones of the Cabernet Sauvignon variety R-5 and R-8 are distinguished by higher rates of fruiting. The average bunch weight in clones reaches 188.7 ± 0.02 g (R-5) and 177.3 ± 2.6 g (R-8), exceeding the control. The yield per bush is on average 5.34 ± 0.21 kg and 4.25 ± 0.07 kg, exceeding the control by 1.54 - 1.23 times. Shoot productivity in terms of bunch wet weight in the Cabernet-Sauvignon R-5 clone is characterized as “high”. The clone of the Merlot R-3 variety has a high fruiting coefficient and a high fertility coefficient. The bunch weight of the clone reaches an average of 227.6 ± 4.3 g, the yield per bush is 6.3 ± 0.1 kg, exceeding the control. Shoot productivity in terms of bunch wet weight in the Merlot R-3 clone is characterized as “very high", in the control it is “high”. The clone of the variety Bastardo Magarachsky VCR-1 has a higher fruiting coefficient than in the control. The average weight of a bunch of a clone reaches 247.7 ± 1.4 g and exceeds the control (186.3 ± 9.14 g). The yield per bush is within 4.62 ± 0.2 kg, exceeding the standard variety by 0.85 kg. Shoot productivity in terms of bunch wet weight in Bastardo Magarachsky VCR-1 clone is characterized as “very high", in control this indicator is defined as “high”. The degree of variability of most traits in populations of standard varieties is characterized as average, which indicates the heterogeneity of the population and the possibility of further identification of new biotypes. According to the technological assessment, the indicators of wine materials in terms of physicochemical and organoleptic indicators, the introduced clones of the studied varieties were superior to the control varieties. In terms of the volume fraction of ethyl alcohol, mass concentration of volatile and titratable acids, all wine materials met the requirements of regulatory documents. Tasting scores of Cabernet Sauvignon wine materials were 7.7-7.9 points. The highest marks were obtained for the sample generated from clone R-8. Wine materials produced from the Merlot variety were noted as high quality, with pronounced varietal characteristics.
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