Drying kinetics and survival of bacteria suspensions of L. paracasei F19 in low-temperature vacuum drying

Bauer, S. A. W.; Kulozik, U.; Foerst, P.

doi:10.1080/07373937.2013.809733

2013

Back
Back to start of result list
Permanent link for displayed object

Document type:: Zeitschriftenaufsatz
Author(s):: Bauer, S. A. W.; Kulozik, U.; Foerst, P.
Title:: Drying kinetics and survival of bacteria suspensions of L. paracasei F19 in low-temperature vacuum drying
Abstract:: The aim of this work was to investigate the influence of process parameters on water content, water activity, survival rate, and membrane integrity during low-temperature vacuum drying for Lactobacillus paracasei F19. Early stationary-phase cells were dried for different lengths of time. The drying rates did not affect the cell survival and the membrane integrity. Additionally, it could be seen that the membrane integrity strongly correlated with the water activity. However, the loss of membrane integrity was sublethal at water contents between 40 and 20{%}; beyond this range water content reduction started to become lethal due to the irreversible loss of cell membrane integrity. «
The aim of this work was to investigate the influence of process parameters on water content, water activity, survival rate, and membrane integrity during low-temperature vacuum drying for Lactobacillus paracasei F19. Early stationary-phase cells were dried for different lengths of time. The drying rates did not affect the cell survival and the membrane integrity. Additionally, it could be seen that the membrane integrity strongly correlated with the water activity. However, the loss of membrane... »
Keywords:: drying kinetics; L.paracaseio F19; Low temperatur vacuum drying; Membrane integrity; Survival rate
Journal title:: Drying Technology
Year:: 2013
Journal volume:: 31
Pages contribution:: 1497--1503
Fulltext / DOI:: doi:10.1080/07373937.2013.809733
BibTeX