The mechanical spectra of whey protein gels at 50, 100 and
250 mM NaCl were characteristic of elastic gels with G0 values
higher than G00 values and both G0 and G00 showed little dependence
over the entire range of frequency (Fig. 3). The general trend was an
increase in gel firmness (G0
) as the salt content rose from 50 to
100 mM, but further increase to 250 mM NaCl resulted in lower G0
,
as has been observed previously (Bertrand & Turgeon, 2007; Neiser
et al., 2000).