The invention falls within the field of food biotechnology and can be used for production of fermented polyfunctional synbiotic beverages for mass consumption. There is proposed the microbial culture association that consists of individual cultures Lactobacillus sp. LUMBI B90, Gluconobacter nephelii LUMBI B35 and Saccharomyces cerevisiae LUMBI R46 in ratio 1:1:1 deposited in Latvian Culture Collection of Microorganisms under accession number P 1401. The association can be used for the production of fermented beverages.