there was an increase
in the percentage of blocked lysine in both heat and UHPH-treated
samples, being from 7% to 13% in the UHPH and from 6% to 10% in
the UHT-treated soymilks (Fig. 4). These results are in accordance
to the low increase in the percentage of blocked lysine during
21 days of refrigerated storage at 4 C previously reported in the
pasteurised UHPH-treated soymilks in contrast to the higher
increase in the heat pasteurised soymilks, reaching 17% of blocked
lysine (Toro-Funes et al., 2014b). The reversible and random dissociations
and aggregations between soybean proteins induced by
pressure in the UHPH treated-soymilk in this work did not seem
significantly to affect the availability of this essential amino acid
throughout storage in comparison to the UHT-treated soymilks.