21952
The antioxidant capacities of the extract were evaluated using 1 , 1 - diphenyl - 2 - picrylhydrazyl radical , beta - carotene / linoleic acid and reducing power and metal chelating activity assays .
 Chemical: 1 , 1 - diphenyl - 2 - picrylhydrazyl; Chemical: beta - carotene; Chemical: linoleic acid
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: 1 , 1 - diphenyl - 2 - picrylhydrazyl; Chemical: beta - carotene; Chemical: linoleic acid