10395
In addition , the results of DPPH and ABTS assays substantiate the free radical scavenging activity of fisetin .
 DPPH, ABTS, fisetin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 DPPH, ABTS, fisetin