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Milk Processing Affects Structure, Bioavailability and Immunogenicity of β-lactoglobulin
https://www.mdpi.com/2304-8158/9/7/874/htm
>While initial conformational transitions occur at temperatures as low as 40 °C [52],
>fully denatured β-lactoglobulin is only observed at temperatures exceeding 130 °C [53,54,55],
>indicating that the denaturation process of β-lactoglobulin can be described as a multistep mechanism.
>Generally, the midpoint of transition, at which abrupt large-scale loss
>of α-helix structural elements is observed, is approximately 65 °C [55]

40℃で変性し始め130℃で完全に変性
その中でも65℃前後での変性が大きい
低温殺菌なら比較的マシというところでは

>β-lactoglobulin was shown to interact with MFGM proteins but both
>homogenization and heat processing are prerequisites for this binding to occur [66].

あとホモジナイズ(均質化)も影響するようだ