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These results suggest that the fractionation is due to selective precipitation of aggregates of 11S globulins and / or 11S globulins and lipid complexes , in which the protein molecules interact through disulphide bonds and / or hydrophobic interactions .
 Chemical: disulphide
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: disulphide