15412
In the antiprotozoal assays , ten of the oils inhibited Trypanosoma brucei rhodesiense ( IC ( 50 ) 15 . 9 - 64 . 5 mu g / mL ) , while only one oil exerted antimicrobial activity towards Staphylococcus aureus ( IC ( 50 ) = 88 . 7 mu g / mL ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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