21728
The HHP treatment of milk increased significantly the volatile compound formation rate whereas it did not affect the duration of the lag phase of formation , with the exception of acetaldehyde and diacetyl formation .
 Chemical: acetaldehyde; Chemical: diacetyl
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: acetaldehyde; Chemical: diacetyl