PH EFFECT ON ANTAGONISTIC ACTIVITY TOWARDS BACTERIA OF YEASTS ISOLATED FROM HUCUL DAIRY PRODUCTS AND GASTROINTESTINAL TRACT OF HUMAN.
Mikrobiol Z
; 78(4): 25-33, 2016 Jul.
Article
em En
| MEDLINE
| ID: mdl-30653877
ABSTRACT
The aim of this work was to study the influence of pH of medium on antagonistic ac- tivity of isolated from authentic Hucul dairy products and gastrointestinal tract (GIT) of Hucul long-livers yeasts towards potentially harmful for humans and animals bacteria. Among 52 tested yeast isolates 14 % yeasts showed considerable antagonistic activity towards Gram-positive bacteria Staphylococcus aureus and only 6 % of them inhibited growth of Gram negative bacteria belonging to genera Escherichia and Citrobacter Most ofyeasts with antagonistic activity (over 70 %) were isolatedfriom long-livers GIT There were identifed two optimal for antagonism areas of pH values of nutrient medium for tested yeasts being around 5.5 and 6.0 for Gram-positive bacteria and around 6.0 and 6.5 for Gram negative bacteria. It appeared that isolated fiom Hucul yogurt Saccharomyces pasterianus yeasts manifested their antagonistic activity in more acidic conditions com- pared to isolates fiom GIT.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Saccharomyces
/
Citrobacter
/
Laticínios
/
Escherichia coli
/
Debaryomyces
/
Intestinos
/
Antibiose
Limite:
Aged80
/
Animals
/
Female
/
Humans
/
Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
Mikrobiol Z
Assunto da revista:
MICROBIOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article