One of the main structural differences with beta-lactoglobulin is that it does not have any free thiol group that can serve as the starting-point for a covalent aggregation reaction.
wˈʌn ʌvðə mˈeɪn stɹˈʌktʃɚɹəl dˈɪfɹənsᵻz wɪð bˈeɪɾəlˈæktəɡlˌɑːbjʊlˌɪn ɪz ðˌɐɾɪt dʌznˌɑːt hæv ˌɛni fɹˈiː θˌaɪoʊl ɡɹˈuːp ðæt kæn sˈɜːv æz ðə stˈɑːɹɾɪŋpˈɔɪnt fɚɹə kˈoʊvələnt ˌæɡɹɪɡˈeɪʃən ɹɪˈækʃən.