25039
Both extracts exhibited strong inhibition against the DPPH radical ( IC50 values of 24 . 81 and 13 . 01 mu gml ( - 1 ) , respectively ) and strong antioxidant activity in beta - carotene bleaching assay .
 Chemical: DPPH; 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: DPPH; Chemical: beta - carotene