Influence of fermentation medium composition on physicochemical surface properties of Lactobacillus acidophilus.

ABSTRACT: The effect of the simple and complex basic components of a fermentation medium on the surface properties of Lactobacillus acidophilus NCC2628 is studied by physicochemical methods, such as electrophoresis, interfacial adhesion, and X-ray photonelectron spectroscopy, and by transmission electron microscopy. Starting from an optimized complete medium, the effect of carbohydrates, peptones, and yeast extracts on the physicochemical properties of the cell wall is systematically investigated by consecutively omitting one of the principal components from the fermentation medium at the time. The physicochemical properties and structure of the bacterial cell wall remain largely unchanged if the carbohydrate content of the fermentation medium is strongly reduced, although the concentration of surfa

SUBMITTER: Schar-Zammaretti P 

PROVIDER: S-EPMC1317426 | biostudies-literature | 2005 Dec

REPOSITORIES: biostudies-literature