28851
The 80 % methanolic extracts were evaluated for antibacterial ( Gram - positive Staphylococcus aureus , Enterococcus faecalis and Listeria monocytogenes and Gram - negative Escherichia coli and Salmonella enterica ) activity using the micro dilution technique .
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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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