Thermal transition temperature (Tpeak) and enthalpy of conformational
transition (DH) data are shown in Table 1. Tpeak was significantly
greater for the WP group, coinciding with a greater
presence of Lys (Table 2) that is responsible for forming covalent
bonds. The enthalpy of conformational transition (DH) was significantly
greater for the FP collagen compared with the WP. This
finding is consistent with the greater presence of Pro, Hyp and
Hyl in FP collagen, which are responsible for collagen molecule stabilisation
and crosslinking typical of the nativeness and
self-assembling of the collagen, thus increasing the enthalpy of
conformational transition. Moreover, Moreno et al. (2012) reported
that texture variations in salmon were attributed to differences in
the enthalpy of conformational transition (DH) and Hyp content of
the collagen. Moreover, Privalov (1982) found a relationship
between the enthalpy and the temperature of denaturation of several
collagens with the amount of Hyp.
Thermal transition temperature (Tpeak) and enthalpy of conformationaltransition (DH) data are shown in Table 1. Tpeak was significantlygreater for the WP group, coinciding with a greaterpresence of Lys (Table 2) that is responsible for forming covalentbonds. The enthalpy of conformational transition (DH) was significantlygreater for the FP collagen compared with the WP. Thisfinding is consistent with the greater presence of Pro, Hyp andHyl in FP collagen, which are responsible for collagen molecule stabilisationand crosslinking typical of the nativeness andself-assembling of the collagen, thus increasing the enthalpy ofconformational transition. Moreover, Moreno et al. (2012) reportedthat texture variations in salmon were attributed to differences inthe enthalpy of conformational transition (DH) and Hyp content ofthe collagen. Moreover, Privalov (1982) found a relationshipbetween the enthalpy and the temperature of denaturation of severalcollagens with the amount of Hyp.
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