15570
The peptide fraction with highest glycerol release obtained from F - SPIH fractionated by sequential ultrafiltration membranes was further purified using gel filtration chromatography and two steps of reverse - phase high - performance liquid chromatography .
 Chemical: glycerol
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: glycerol