Chemical Composition, Antimicrobial Activity, and Antioxidant Activity of Ocotea minarum (Nees & Mart.) Mez.
Table 3
Minimum inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of the bark and leaf extracts of O. minarum against gram-positive and gram-negative bacteria (μg/mL).
Microorganism
EEB
EAEB
HEEB
HYEB
EEL
EAEL
HEEL
HYEL
AMP
MIC
MBC
MIC
MBC
MIC
MBC
MIC
MBC
MIC
MBC
MIC
MBC
MIC
MBC
MIC
MBC
MIC
Staphylococcus aureus
500
>1000
250
>1000
500
>1000
125
1000
500
>1000
125
500
1000
>1000
>1000
>1000
32
Staphylococcus epidermidis
1000
>1000
250
>1000
1000
>1000
125
1000
1000
>1000
250
>1000
>1000
>1000
500
>1000
64
Bacillus cereus
500
500
500
>1000
500
>1000
62.5
500
250
>1000
62.5
250
1000
>1000
125
1000
32
Salmonella Typhimurium
>1000
>1000
>1000
>1000
1000
>1000
>1000
>1000
1000
>1000
1000
>1000
>1000
>1000
>1000
>1000
32
Salmonella Enteritidis
1000
>1000
>1000
>1000
1000
>1000
1000
>1000
1000
>1000
1000
>1000
1000
>1000
1000
>1000
32
Pseudomonas aeruginosa
>1000
>1000
1000
>1000
500
>1000
1000
>1000
1000
>1000
>1000
>1000
1000
>1000
1000
>1000
—
Proteus mirabilis
>1000
>1000
1000
>1000
>1000
>1000
1000
>1000
1000
>1000
1000
>1000
>1000
>1000
>1000
>1000
32
EEB: ethanolic extract of bark; EAEB: ethyl acetate extract of bark; HEEB: hexane extract of bark; HYEB: hydroalcoholic extract of bark; EEL: ethanolic extract of leaf; EAEL: ethyl acetate extract of leaf; HEEL: hexane extract of leaf; HYEL: hydroalcoholic extract of leaf; AMP: ampicillin. Biological analysis was performed in duplicate with three independent experiments. —: not tested against this microorganism.
