New Streptococcus salivarius subsp. Thermophilus strain and its enriched seed

摘要

Among the main ingredients added to the culture medium for the enriched seed culture, lactose and glucose are used as carbon sources. Especially, glucose is used exclusively except for a few lactic acid bacteria because of its advantage of being cheap and easy to manufacture in a culture medium.;Streptococcus sylvariasis subspecies, which is a thermophilic lactic acid strain widely used in yogurt production as well as cheese production, has a unique characteristic of preferring disaccharides (lactose, sucrose) rather than monosaccharides (glucose and fructose) There has been a problem that the production of the enriched seeds in the culture medium is inappropriate.;New strain Streptococcus salivarius subsp. Thermophilus strain HY 0619 (deposit number: KFCC-10843, Korean Society of Bacteriology, October 7, 1994), produced and isolated according to the present invention, And the incubation time is fast.;The novel Streptococcus sp. Subtilis strain HY 0619 according to the present invention is used in the concentrate seeds and the mixed-concentrate seeds on the same day, and finally can be widely used for various lactobacillus fermented milk products.