18294
The antioxidant activities of the isolated compounds ( 1 - 11 ) were evaluated using the 2 , 2 - diphenyl - 1 - picrylhydrazyl ( DPPH ) assay .
 Chemical: 2 , 2 - diphenyl - 1 - picrylhydrazyl; Chemical: DPPH
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: 2 , 2 - diphenyl - 1 - picrylhydrazyl; Chemical: DPPH