12668
It seems that mushrooms polyphenols exert antiradical and reducing activities , but they are not strong metal chelators , the observed chelating ability being probably due to other classes of compounds .
 Chemical: polyphenols
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: polyphenols