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Document type:
Zeitschriftenaufsatz 
Author(s):
Aschenbrenner, M.; Grammueller, E.; Kulozik, U.; Foerst, P. 
Title:
The contribution of the inherent restricted mobility of glassy sugar matrices the the overall stability of freeze-dried bacteria determined by low resolution solid state 1H-NMR 
Abstract:
The aim of this work was to evaluate whether, in case of freeze-dried bacteria, the protective effect of a surrounding glassy matrix can be ascribed to its inherent restrictedmolecular mobility. Lactobacillus paracasei ssp. paracasei together with three different protectants (lactose, trehalose and dextran) was freeze-dried and stored at different temperatures and water activities (aw). The spin--spin relaxation timeT2 was 1 determined by means of low resolution 1H-NMR spectroscow 2 py and...    »
 
Keywords:
Bacteria; Freeze-drying; Glassy state; H-NMR-Stability; Molecular Mobility 
Journal title:
Food and Bioprocess Technology 
Year:
2014 
Journal volume:
Pages contribution:
1012--1024