Behaviour ofPropionibacterium shermanii in alkaline medium |
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Authors: | J ?erná V Váňa |
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Institution: | (1) Research Institute of Food Industry, 15038 Prague 5;(2) Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague |
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Abstract: | Physiological and morphological properties ofPropionibacterium shermanii were estimated in a liquid semisynthetic medium of initial pH between 7 – 10. Prolongation of the lag phase and a shift of
the stationary phase occurred at higher initial pH values of the medium, The growth response of the strain depended on the
way of glucose addition (either sterilized in the medium or added aseptically after sterilization). At pH 8.5 and higher the
cells begin to form slime and capsules. The strain exhibited growth activity even at initial pH values of the medium 11.5. |
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