17274
In the first step , GTase catalyzed trehalulose formation using a 20 % sucrose substrate .
 Chemical: trehalulose; Chemical: sucrose
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: trehalulose; Chemical: sucrose