蛋清
热稳定性
化学
变性(裂变材料)
共价键
电泳
电场
β-乳球蛋白
生物物理学
结晶学
乳清蛋白
色谱法
生物化学
核化学
有机化学
生物
酶
物理
量子力学
作者
Oscar E. Pérez,Ana M.R. Pilosof
标识
DOI:10.1016/j.foodres.2003.09.008
摘要
The structure modification of egg white proteins and β-lactoglobulin concentrate when subjected to long length pulses of high intensity electric fields (12.5 kV/cm) was evaluated and related to their sol–gel transition behavior. Both proteins were partially denatured (26–40%) when applying up to 10 pulses in the order of milliseconds. However, whilst the onset and peak, denaturation temperatures of the β-lactoglobulin concentrate were reduced by approximately 4–5 °C, the thermostability of egg white proteins was partially increased. Electrophoresis analysis revealed the formation of aggregates involving covalent bonds. The gelation rate of β-lactoglobulin concentrate was increased after the electric-treatment. In contrast, the gelation rate of egg white at 63 °C was lowered.
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