Journal of dairy science, 1997-09, Vol.80 (9), p.1955-1958
1997
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- Influence of Bile on β-Galactosidase Activity and Cell Viability of Lactobacillus reuteri when Subjected to Freeze-Drying
- Ist Teil von
- Journal of dairy science, 1997-09, Vol.80 (9), p.1955-1958
- Ort / Verlag
- Savoy, IL: Elsevier Inc
- Erscheinungsjahr
- 1997
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- The effect of bile on β-galactosidase activity and cell viability was investigated using two strains of Lactobacillus reuteri that were subjected to freeze-drying. In the presence of 0.15% oxgall, β-galactosidase activity of the whole cells was significantly increased. After lyophilization, the cultures that had been treated with oxgall showed a low survival rate without changes in β-galactosidase activity. The poor resistance of the cells to damage from freeze-drying might be related to the presence of membranous structures containing simple folds and buds of the cell membrane, as was observed by transmission electron microscopy.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0022-0302eISSN: 1525-3198DOI: 10.3168/jds.S0022-0302(97)76137-XTitel-ID: cdi_proquest_miscellaneous_79303654
- Format
- –
- Schlagworte
- ACTIVIDAD ENZIMATICA, ACTIVITE ENZYMATIQUE, BETA GALACTOSIDASA, BETA GALACTOSIDASE, beta-Galactosidase - metabolism, bgalactosidase, BILE, Bile - physiology, BILIS, Biological and medical sciences, CELL MEMBRANES, CULTURE MEDIA, ENZYMIC ACTIVITY, Food industries, Food microbiology, FREEZE DRYING, Fundamental and applied biological sciences. Psychology, lactic acid bacteria, LACTOBACILLUS, Lactobacillus - enzymology, Lactobacillus - physiology, LIOFILIZACION, LYOPHILISATION, MEDIO DE CULTIVO, MEMBRANAS CELULARES, MEMBRANE CELLULAIRE, MICROSCOPIA, MICROSCOPIE, MICROSCOPY, MILIEU DE CULTURE, SUPERVIVENCIA, SURVIE, SURVIVAL, TRANSMISSION ELECTRON MICROSCOPY