LACTOSE-POSITIVE STRAIN PEDIOCOCCUS PENTOSACEUS AND COMPLEX OF EXOPOLYSACHARIDES CONTAINING FRUCTANES SYNTHESIZED BY THEM

摘要

The present invention pertains to the novel lactose-positive strain Pediococcus pentosaceus that is deposited in International Depositary Authority Microbial Strain Collection of Latvia with catalogue number P 773. The invention relates also to exopolysaccharide complex having prebiotic properties and containing fructanes being synthesized by Pediococcus pentosaceus P 773 as well as to method of synthesis thereof. The isolated novel strain Pediococcus pentosaceus P 773 is able to use lactose as unique source of carbon as well is able to grow in substrates of different kind foodstuffs, e.g., milk, grain substrate, vegetable and fruit juices, soybean milk and etc. Due to mentioned properties of strain it could be used as technological culture in all kind fermentation processes, as starter ferment separately or in mixture with other cultures. The method for synthesis of exopolysaccharide complex having prebiotic properties using strain Pediococcus pentosaceus P 773 characterized in that a strain of microorganism is cultivated in fermentation medium during 12 to 72 hours at a temperature of 15 to 42 centigrade. The fermentation medium contains sucrose or raffinose in concentration from 0.1 to 120 g/l.