SciELO - Scientific Electronic Library Online

vol.27 issue3Characterization of the immune response generated by intramuscular administration of nucleocapsid and surface antigens of Hepatitis BFibrinolysis with recombinant streptokinase affects the prognostic value of cardiac troponin I in acute myocardial infarction: a ten-day follow-up author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO


Biotecnología Aplicada

On-line version ISSN 1027-2852


PEREZ, Enrique R et al. A pH shift-based procedure to screen fructoligosaccharides fermenting yeast or bacterial Straits. Biotecnol Apl [online]. 2010, vol.27, n.3, pp.216-220. ISSN 1027-2852.

Symbiotic, a combination of short chains-carbohydrates with prebiotic properties e.g. fructooligosaccharides (FOS) and biotherapeutical microorganisms, provides positive health effects and well-being in humans and animals. However; the lack of accurate screening methods hampers the possibility to get new fructo-oligosaccharides (FOS)-fermenting yeast or bacterial strains to design potential symbiotic combinations useful for health and food industries. A valuable screening procedure to visually evaluate pure cultures of bacterial and yeast strains able to ferment FOS in liquid or solid rich media supplemented with a pH indicator is described. Using this procedure, 15 FOS-consuming strains isolated from different sources were successfully assayed using this method. This screening procedure is a useful tool in rapid large-scale detection of potential FOS fermenting-strains.

Keywords : Bromothymol blue; fructoligosaccharides; fructoligosaccharides fermenting microorganisms; prebiotics; probiotics; screening; symbiotic.

        · abstract in Spanish     · text in English     · English ( pdf )