Detection of the cavitation component in the total increase of reducing sugars as a result of inversion of sucrose under ultrasonic influence on vegetable and fruit purees

The article presents the results of a study of the process of inversion of sucrose in apple, carrot and pumpkin puree, occurring under ultrasonic action on them, with the formation of the total amount of reducing sugars, as well as with the identification of the autonomously manifested cavitation component that occurs simultaneously with thermal inversion. The relevance of research consists in identifying the quantitative value of reducing sugars formed due to a separately flowing cavitation component in the general inversion of sucrose, when exposed to ultrasound with specified parameters, in order to obtain new types of products with different physicochemical parameters and organoleptic characteristics, depending on changes in parameters processing. To identify the part of reducing sugars formed by the cavitation effect alone, in the total inversion of sucrose occurring during ultrasonic exposure to the product, it is necessary to exclude part of the increase in reducing sugars from the total amount of increase detected by thermal exposure. As a result of the calculations, the following values of the increase in the amount of reducing sugars (relative to the original data), obtained only due to the cavitation effect during ultrasonic processing of puree, were obtained. In natural apple puree the increase was 240 mg per 100 g, and in puree with added sucrose – 495 mg per 100 g, which is 2 times higher. In carrot puree the natural increase was 74 mg per 100 g, and in puree with sucrose it was 150 mg per 100 g, which is twice higher and confirms the same pattern as in apple puree. In natural pumpkin puree the increase was 27 mg per 100 g, and in puree with sucrose it was 84 mg per 100 g, which is more than 3 times higher than in natural. The results obtained allow us to conclude that when processing the product with ultrasound, the process of sucrose inversion is intensified; including its component obtained due to the cavitation effect, and the inversion is more deeply manifested in puree with added sucrose.

sucrose inversion, reducing sugars, ultrasonic effect, increase in total reducing (invert) sugars, vegetable purees, fruit purees

1. Khalitova E. Sh., Maneva E. Sh., Bykov A. V. Non-traditional methods of processing fruit and vegetable raw materials Materials of the scientific-practical conference (Orenburg, January 29-31, 2014). Orenburg, 2014: p. 1309-1313. (In Russ.)

2. Usanova Yu. Yu., Fedosenko T. V. Study of the influence of ultrasonic treatment on the inversion of sucrose in a monocomponent puree from vegetable raw materials. Collection of scientific papers of the XIII International Scientific and Practical Conference of Young Scientists and Specialists of Organizations in the Field of Agricultural Sciences “Advanced Research and New Approaches to the Production and Processing of Agricultural Raw Materials”. Moscow, 2019: p. 343-347. (In Russ.)

3. Patsyuk L. K., Alabina N. M., Borchenkova L. A. et al. Study of the process of changing the physical and chemical parameters of products due to the use of cavitation treatment. Materials of the scientific conference “Development of the food and processing industry in Russia: personnel and science”. - Moscow: MGUPP, 2017: p. 69-71. (In Russ.)

4. Gerasimov T. V. Development of technologies of flour products using cavitation: PhD abstract. Moscow, 2015, 25 p.

5. Dukhu T. A., Shcherbakova N. A., Ostapenkova N. A., Savenkova T. V., Aksenova L. M. New physical methods of processing confectionery masses. Collection of materials of the All-Russian scientific-practical conference “Principles of food combinatorics – the basis for modeling polycomponent food products.” (Uglich, 08-09 September 2010). Uglich, 2010: p. 85-87. (In Russ.)

6. Ermolaev S. V., Krivovoz A. G., Ermolaeva G. A. Preparation of inverted sugar syrups. Pivo i napitki. 2004;5:48-49. (In Russ.)

7. Kim K-H., Chahine G., Franc J-P., Karimi A. Fluid Mechanics and Its Applications 106 – Advanced Experimental and Numerical Techniques for Cavitation Erosion Predict. New York: Springer Science + Business Media Dordrecht. 2014, 399 p.

8. Petrov A. N., Patsyuk L. K., Medvedeva E. A., Alabina N. M., Borchenkova L. A., Kondratenko V. V. Obtaining semi-fi nished products with specified physical and chemical properties for the confectionery industry by cavitation treatment of mixtures consisting of sugar and fruit or vegetable puree in various ratios. All-Russian research Institute of canning technology – branch of the V. M. Gorbaty Food Systems Research Center of the Russian Academy of Sciences. Research report for 2015. (In Russ.)

9. Pat. RF, invention, No. 2228217 / 10.05.2004. Shestakov S. D. Method of cavitation treatment of liquid media and a reactor for its implementation. Available here: https://yandex.ru/patents/doc/RU2228217C1_20040510 Link active on 01.08.2020

10. Kondratenko V. V., Fedosenko T. V., Patsyuk L. K. et al. Study of the possibility of using ultrasound for the manufacture of homogenized products. Tekhnologiya i tovarovedeniye innovatsionnykh pishchevykh produktov. 2019;4(57):17-22. (In Russ.)

11. Method M 04-69-2011: “Drinks. Fruit and vegetable products. Dietary supplement. Honey. Determination of fructose, glucose and sucrose by capillary electrophoresis using the Kapel-105M system (Russia). (In Russ.)

12. Fedosenko T. V., Patsyuk L. K., Kondratenko V. V. et al. The influence of ultrasonic treatment on the inversion of sucrose in vegetable and fruit purees. Ovoshchi Rossii. 2020;3:23-28. (In Russ.)

13. To investigate the regularities of changes in the rate of sucrose inversion as a result of the complex effect of active acidity of the medium and parameters of cavitation treatment: report on research (intermediate). VNIITeK – branch of the V. M. Gorbatov Federal Research Center for Food Systems of the Russian Academy of Sciences; Scientific Director V. V. Kondratenko. Vidnoye, 2019, 38 p. (In Russ.)