The article presents the rationale for the use of fermented milk products containing probiotics and prebiotics for the prevention of diseases of the gastrointestinal tract. A method for preparing a functional fermented milk drink with prebiotics that helps normalize the intestinal microflora is also presented. The urgency is due to the wide spread gastrointestinal diseases among the population of the Republic of Kazakhstan, due to lack of nutrients essential for development of normal intestinal flora, and also with the instability of some types of probiotics, which reduces the efficiency of their use.

Main problem: The unfavorable conditions in which a significant part of the population of our country lives (living in conditions of harmful, stressful, physical, chemical and radiation effects), an imbalance in nutrition dictate the need to create a variety of functional products enriched with pro– and prebiotic factors. In the science of nutrition, a functional direction has been developed - this is nutrition, which provides for the consumption of such products of natural origin, which, when used daily, have a regulating effect on the body as a whole, its certain systems, organs, providing a drug-free positive correction of their function. Compared with traditional types of dairy products with high organoleptic and commodity characteristics, produced on the basis of classical technological techniques, dairy products of the new generation should have increased nutritional and biological value. The article is devoted to the research and development of the technology of a new cottage cheese product - cottage cheese paste produced with the addition of lactulose concentrate and fruit and berry fillers. This article discusses the steady trend towards the use of fermented milk products with functional properties in the diet of modern humans. Purpose: Study and development of technology of thermized cottage cheese paste enriched with prebiotic lactulose and fruit and berry fillers. Methods: Analysis and generalization of theoretical information, organoleptic evaluation, physicochemical methods of analysis, microbiological methods of evaluation of cottage cheese paste, quality control of the finished product. Results and their significance: The positive role of prebiotic substances in the vital activity of the macroorganism was studied. It is not for nothing that academician Andrei Georgievich Khramtsov once called lactulose "a miracle made of milk." Lactulose, being a strong bifidogenic factor, allows stabilizing the microflora of the stomach. Lactulose activates the growth of bifidobacteria, which take root well in the intestine and ferment lactulose to form lactic acid. Lactic acid suppresses the development of pathogenic and putrefactive bacteria. As a result of the conducted studies, it was determined that the cottage cheese paste enriched with lactulose had high quality indicators and retained its consumer properties during the entire storage period. The introduction of lactulose into the recipe of cottage cheese paste does not reduce the nutritional advantages of the finished product.

The article contains the results of a research work devoted to an important problem - the development, production and delivery to the consumer of fermented dairy products of a healthy diet fortified (enriched) with milk protein, a vitamin-mineral complex, and probiotics and prebiotics. Purpose is based on mathematical modeling of experimental data, to determine an effective fermented food system for use as the basis of a fortified (enriched) curd product for a healthy specialized diet; to develop a recipe and technology for its production; to study the nutritional, biological and energy value of a new product. Modern technologies and equipment were used in experimental studies: ultrafiltration, fortification, etc. The studies were carried out by standard physicochemical, microbiological methods in three to five repetitions. Mathematical and statistical processing of experimental data was carried out using the program "Statistica-6.0". A recipe and technology for the production of a curd product for a healthy specialized diet has been developed. Its nutritional, biological and energy value has been studied. The developed recipe and biotechnological parameters for the production of the curd product were tested in the industrial conditions of the leading enterprise JSC "Lyubinskiy MKK". The quality and safety of the curd product was studied in the laboratory of techno-chemical control of FGANU "VNIMI" (Moscow).