15593
The hulls always exhibited high antioxidant activity , measured using the reducing power ( RP ) , antiradical activity ( DPPH ) or oxygen radical absorbance capacity ( ORAC ) assays .
 Chemical: DPPH; Chemical: oxygen
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: oxygen