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Ternary phase diagrams were constructed in order to obtain the most efficient self - emulsification region , and the formulation of apigenin loaded SMEDDS was optimized by a simplex lattice experiment design .
 Chemical: apigenin
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: apigenin