Open AccessTHE EFFECT OF NEW LACTIC ACID BACTERIA ON GROWTH AND SURVIVAL OF HYDROBIONTS
Author(s) -
N. A. Kolomin,
Ольга Борисовна Сопрунова
Publication year - 2020
Publication title -
vestnik permskogo universiteta. seriâ biologiâ
Language(s) - English
Resource type - Journals
ISSN - 1994-9952
DOI - 10.17072/1994-9952-2020-2-115-119
Subject(s) - lactic acid , bacteria , lactose , maltose , sucrose , food science , biology , microbiology and biotechnology , isolation (microbiology) , genetics
The article is devoted to the study and isolation of new isolates of lactic acid bacteria. During the study, 9 isolates of lactic acid bacteria were isolated and their physiological, biochemical, and production-valuable properties were studied.The isolates have sufficient acid-forming activity (56.5-110 To), expressed saccharolytic activity (breakdown glucose, lactose, sucrose, maltose and galactose), the ability to develop at high concentrations of NaCl. Four of the most active isolates were used to study the effectiveness of lactic acid bacteria in the feed composition. As a result of inclusion of studied isolates in aquarium fodders, positive effect of two isolates on fish-growing and biological indices of fish has been established. The obtained data indicate at the same time the biological safety of the studied cultures, as well as the increase in the growth intensity of aquarium fish.