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Ethyl butyrate and ethyl octanoate odour thresholds doubled or tripled in the presence of catechin , underlining a retention impact of phenolic compounds in liquid matrix .
 Chemical: Ethyl butyrate; Chemical: ethyl octanoate; Chemical: catechin; Chemical: phenolic
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: Ethyl butyrate; Chemical: ethyl octanoate; Chemical: catechin; Chemical: phenolic