25889
The effect of ferrous ion and sucrose concentration , as well as lyophilization stage promoting lipid degradation , was investigated .
 Chemical: ferrous; 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: ferrous; Chemical: sucrose