15514
During the acidification of beta - casein solutions , partially dephosphorylated beta - casein failed to form a gel , unlike the phosphorylated ( i . e . , control ) beta - casein .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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