Badania stanu "niehodowalności" komórek bakterii fermentacji mlekowej w niesprzyjających warunkach rozwoju

• Autorzy: Olszewska M. , Laniewska-Trokenheim L.

Warianty tytułu

EN

Study of the nonculturable state (viable but non-culturable – VBNC) of lactic acid bacteria cells under various adverse growth conditions

• Języki publikacji: PL

Abstrakty

EN

The reason for undertaking the research concerning the physiological state of lactic acid bacteria is closely associated with applications of these microorganisms in the food industry. An increased demand referring to microbiological analysis has been affected by the intensification of research assessing the physiological state of microorganisms in unfavorable for them conditions. In technological processes as well as in natural habitats microorganisms can encounter a variety of adverse conditions, arising from the influence of physical and chemical factors such as extremes in temperature, pH or presence of bacteriostatic agents. Therefore, the determination of the viability of bacteria may be challenging due to difficulties in the selection of suitable enumeration methods. The use of conventional methods that rely on the replication and colony formation on growth media is hindered by the decreased reproductive capacity of cells under detrimental conditions. As a result, alternative techniques which do not focus on cell proliferation, but on the metabolic activity or cell structure integrity are being favored. Approaches performing direct detection of different physiological parameters of microbes are connected with the application of modern fluorescence techniques, and in consequence with progress in microbiological research.

Słowa kluczowe

PL

mikrobiologia; bakterie kwasu mlekowego; warunki srodowiska; warunki niekorzystne; przezywalnosc; stan fizjologiczny; analiza mikrobiologiczna; techniki fluorescencyjne

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2011
• Tom: 67
• Numer: 02
• Opis fizyczny: s.105-109,fot.,bibliogr.

Twórcy

autor

Olszewska M.

• Katedra Mikrobiologii Przemysłowej i Żywności, Wydział Nauk o Żywności, Uniwersytet Warmińsko-Mazurski w Olsztynie, Pl.Cieszyński 1, 10-726 Olsztyn

autor

Laniewska-Trokenheim L.

Bibliografia

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