4522
The effect of formulation additives such as buffering agents on rheological behavior demonstrated that sodium bicarbonate and lactic acid have opposite effect on sol - gel transition temperature of the system .
 Chemical: sodium bicarbonate; Chemical: lactic acid
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: sodium bicarbonate; Chemical: lactic acid