Abstract

Galactosidase and proteinase activity of lactic acid bacteria of the DELVO-YOG range has been investigated. Lactic acid bacteria of the DELVO-YOG range have been shown to exhibit maximal galactosidase activity in the presence of the CMC stabilizer Akucell 2785; the activity was minimal when sodium alginate NO4-600 was used as a stabilizer. The proteolytic activity demonstrated by the lactic acid bacteria of the DELVO-YOG range was maximal when sodium pyrophosphate SAPP 28 was used as a stabilizer. Minimal proteolytic activity of lactic acid bacteria of the DELVO-YOG range was registered when CMC 6000-9000 was used as a stabilizer. An increase of galactosidase and proteinase activity concomitant to an increase of the stabilizer content from 0.5 to 1.0 mass. % was demonstrated for all the denominations of lactic acid bacteria of the DELVO-YOG range.

Keywords

milk, lactic acid bacteria, activity, glycolysis, proteolysis, structure stabilizer

REFERENCES

1. Prosekov, A. Yu., Sovremennye aspekty proizvodstva produktov pitaniya (Modern Aspects of Food Production), Kemerovo: Kuzbassvuzizdat, ASTSh, Universitety Rossii, 2005.
2. Prosekov, A. Yu. and Korotkaya, E. V., Kriokonservirovanie bakterial’nykh preparatov molochnoi promyshlennosti (Cryopreservation of Bacterial Preparations for Dairy Industry), Kemerovo: Kem TIPP, 2010.
3. Gorbatova, K. K., Fiziko-khimicheskie i biologicheskie osnovy proizvodstva molochnyh produktov (Physico-Chemical and Biochemical Basis of the Manufacturing of Dairy Products), Moscow: GIORD, 2003.