6390
The antioxidative effect of sitosterol at 1 , 2 and 5 % levels , in triolein , refined canola , high oleic sunflower and flaxseed oils , continuously heated for a period of up to 72 h at frying temperature of 180 degrees C , was studied .
 Chemical: sitosterol; Chemical: triolein
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: sitosterol; Chemical: triolein