26473
Two types of emulsion system were compared : primary and multilayer oil - in - water ( P - O / W , M - O / W ) emulsions consisting of soy oil coated by beta - lactoglobulin and pectin layers .
 None
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:  
Answer:
 None