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Antioxidant activity ( AA % ) of free and bound phenolic compounds was measured using the linoleic acid / beta - carotene assay .
 Chemical: phenolic; Chemical: linoleic acid; Chemical: beta - carotene
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: phenolic; Chemical: linoleic acid; Chemical: beta - carotene