3577
Hydroxypropyl methylcellulose ( HPMC ) was added to curcumin solutions prior to lyophilization .
 Chemical: Hydroxypropyl; Chemical: curcumin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Hydroxypropyl, curcumin 
Answer:
 Chemical: Hydroxypropyl; Chemical: curcumin