GROWTH OF STAPHYLOCOCCUS-AUREUS AS RELATED TO O-17 NMR WATER MOBILITYAND WATER ACTIVITY

Authors
LAVOIE JP LABBE RG CHINACHOTI P
Citation
Jp. Lavoie et al., GROWTH OF STAPHYLOCOCCUS-AUREUS AS RELATED TO O-17 NMR WATER MOBILITYAND WATER ACTIVITY, Journal of food science, 62(4), 1997, pp. 861-866
Citations number
29
Categorie Soggetti
Food Science & Tenology
Journal title
Journal of food science → ACNP
ISSN journal
00221147
Volume
62
Issue
4
Year of publication
1997
Pages
861 - 866
Database
ISI
SICI code
0022-1147(1997)62:4<861:GOSART>2.0.ZU;2-Z
Abstract
O-17 NMR data were determined for three solute-BHI (Brain Heart Infusi on) mixtures. For each solute, NaCl, raffinose and glycerol, NMR data (linewidths and signal intensity) were determined as well as water act ivity (a(w)), moisture contents, and effects on growth of Staphylococc us aureus in media of various moisture contents. Liquid (highly mobile ) water content in all media tested was determined by NMR. This mobile water was important and had a stronger correlation with S. aureus gro wth rate than did a(w) or moisture content, although solute effects li mited empirical prediction. NMR linewidth also correlated with lag pha se.