22211
Encapsulation of indole - 3 - carbinol and 3 , 3 ' - diindolylmethane in zein / carboxymethyl chitosan nanoparticles with controlled release property and improved stability .
 Chemical: indole - 3 - carbinol; Chemical: 3 , 3 ' - diindolylmethane; Chemical: carboxymethyl
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: indole - 3 - carbinol; Chemical: 3 , 3 ' - diindolylmethane; Chemical: carboxymethyl