Which Approach Is More Effective in the Selection of Plants with Antimicrobial Activity?
Table 2
Minimal inhibitory concentration (μg/mL) of herbaceous species from the semiarid region, Northeast of Brazil, based on random, direct, and indirect ethnopharmacological approaches.
Species
Sa
Se
Ss
Bs
Ef
Ca
Ck
Ct
Random approach
Blainvillea acmella (L.) Philipson
>1000
>1000
>1000
>1000
NT
NT
NT
NT
Centratherum punctatum Cass.
>1000
>1000
>1000
>1000
>1000
NT
NT
NT
Sida urens L.
500
1000
1000
NT
NT
NT
NT
NT
Species 1 (Malvaceae)
NT
NT
NT
NT
NT
31.25
62.5
62.5
Indirect ethnopharmacological approach
Tillandsia recurvata (L.) L.
>1000
>1000
>1000
>1000
>1000
NT
NT
NT
Hypenia salzmannii (Benth.) Harley
>1000
NT
NT
NT
NT
NT
NT
NT
Direct ethnopharmacological approach
Acanthospermum hispidum DC.
1000
>1000
>1000
>1000
NT
NT
NT
NT
Argemone mexicana L.
NT
NT
NT
NT
NT
NT
>1000
NT
Euphorbia hyssopifolia L.
1000
>1000
>1000
1000
NT
NT
NT
NT
Hyptis suaveolens (L.) Poit.
>1000
>1000
>1000
NT
NT
NT
NT
NT
Indigofera suffruticosa Mill.
500
>1000
>1000
1000
>1000
NT
NT
NT
Leonotis nepetifolia (L.) R. Br.
>1000
NT
NT
NT
NT
NT
NT
NT
Ludwigia octovalvis (Jacq.) P.H. Raven
250
500
NT
NT
NT
125
1000
1000
Melochia tomentosa L.
>1000
>1000
NT
>1000
NT
NT
NT
NT
Momordica charantia L.
1000
>1000
>1000
1000
>1000
NT
NT
NT
Sa: Staphylococcus aureus; Se: S. epidermidis; Ss: S. saprophyticus; Bs: Bacillus subtilis; Ef: Enterococcus faecalis; Ca: Candida albicans; Ck: C. krusei e; Ct: C. tropicalis; NT: extract not tested for the strain.
