22185
Cocoa extract and the fraction obtained after in vitro gastrointestinal digestion presented antioxidant activity against oxidative stress induced by hydrogen peroxide in Caco - 2 cells .
 Chemical: hydrogen peroxide
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: hydrogen peroxide