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Опубліковано: Середа, 22 грудня 2021, 11:50
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7. INVESTIGATION OF THE INFLUENCE OF THE CHEMICAL COMPOSITION OF NEW TOMATO VARIETIES ON QUALITATIVE CHARACTERISTICS OF CONCENTRATED TOMATO PRODUCTS
https://doi.org/10.31073/foodresources2021-17-07
Olha Dushchak, Oleksandr Bessarab, Vitaly Shutiuk
Pages: 65-71

Abstract
It is known that the soil and climatic conditions of Ukraine are quite favorable for growing many types of vegetable crops, in particular, open ground tomatoes, therefore, a promising way to develop the tomato processing industry is to improve processing technologies to obtain tomato products with high organoleptic, physicochemical, food and biological value. The priority in solving this issue is to expand the raw material base and find ways to improve existing technologies for processing tomatoes to obtain products with optimal nutritional and biological value. The aim of the research was to conduct a comparative evaluation of new varieties of tomatoes of local selection for suitability for tomato paste with high chemical and organoleptic qualities. To achieve this goal, the following tasks were set: to study the effect of the variety on the chemical composition of the obtained tomato paste; give an organoleptic and chemical evaluation of tomato paste depending on the varieties used. Subject of research: varieties of tomatoes Alexia, Bobcat, Jane, meeting the requirements of DSTU 7612: 2014 "Fresh tomatoes for industrial processing. Specifications". Research results. The content of basic chemicals in tomatoes, both before processing and when processing into paste did not differ significantly and were within the error of the experiment. A significant difference was observed only in the content of ascorbic acid. The reduction of ascorbic acid depending on the variety varied in the range of 3.2-4.0 mg / 100 g. During further processing in the process of boiling tomato paste, there are changes in all major chemicals. Dry matter due to moisture loss was in the range of 30.5-31.9%. When boiling the raw material to the state of the paste, regardless of the variety, the dry matter content increased in comparison with fresh fruit in 3.7 4.5 times. As in the grinding of tomato fruits, boiling of tomato pulp occurred at access of oxygen and high boiling point, which led to the destruction of ascorbic acid, and its content in the finished product varied depending on the variety from 8.06 to 8.21 mg / 100 g, which is less than the original by 7.14–7.80 / 100 g. Sugar-acid index – taste indicator of quality – technological requirements must be not less than 7 units.
Key words: tomatoes, concentration, varieties, tomato products, quality

References
1. Benderska О., Bessarab А., Shutyuk V. (2018). Research of fatty acid composition of tomato seeds. Technology audit and production reserves, Vol 4, No 3(42), 68-72. https://doi.org/10.15587/2312-8372.2018.140531
2. Benderska О., Bessarab А., Shutyuk V. (2018). Study of the use of edible powders in tomato sauce technologies. Journal of Food science and technology, 12(2), 59-65. http://dx.doi.org/10.15673/fst.v12i1.837
3. Bertin N., Génard M. (2018). Tomato quality as influenced by preharvest factors. Scientia Horticulturae. Vol. 233, 264-276. https://doi.org/10.1016/j.scienta.2018.01.05
4. Bosona T., G. Gebresenbet. (2018). Life cycle analysis of organic tomato production and supply in Sweden. Journal of Cleaner Production. Vol. 196, 635-643 https://doi.org/10.1016/j.jclepro.2018.06.087
5. Lucille A., Don G.. (2002). Ethylene biosynthesis and action in tomato, a model for climacteric fruit ripening. J. Exp. Bot., 53 (377), 2039-2055. doi: 10.1093/jxb/erf072
6. Haroon S. (2014) Extraction of Lycopene from Tomato Paste and its Immobilization for Controlled Release-dissertation. Hamilton: University of Waikato.
7. Hernandez S., Rodriguez E., Diaz R. (2007). Mіneral and trace element concentrations in cultivars of tomatoes. Food Chem. 104 (2), 489-499. https://doi.org/10.1016/j.foodchem.2006.11.072
8. Muratore, F., & Licciardello E. (2005). Evaluation of the chemical quality of a new type of small-sized tomato cultivar, the plum tomato (Lycoperciconlicopersicum). Food Sci. 17, 1, 75–81.
9. Hisace M., Nakanishi M. (2003). Destroying of chlorophyll during storage. J. Food Sci. and Technol. 9. 429-431.
10. Hszeola Donald E. (1995). Packaging takes an active approach. Food Technol. 49, 8. 104.

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