21750
Optimization of fructosyl - galacto - oligosaccharides synthesis was carried out using response surface methodology , considering temperature and initial sugar concentration as variables and yield and specific productivity as response parameters .
 Chemical: fructosyl - galacto - oligosaccharides; Chemical: sugar
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: fructosyl - galacto - oligosaccharides; Chemical: sugar