Antibacterial activity of various honey types of Algeria against Pathogenic Gram–Negative Bacilli: Escherichia coli and Pseudomonas aeruginosa

Antibacterial activity of the essential oils from the leaves of Eucalyptus globulus against Escherichia coli and Staphylococcus aureus

“…Some authors have reported that gram-negative microorganisms are slightly more sensitive to essential oils when compared to gram-positive [32][33][34][35][36][37][38][39][40][41][42] . The gram-positive and gram-negative microorganisms differ in several aspects other than with respect to the structure of their cellular walls, mainly with regard to the presence of lipoproteins and lipopolysaccharides in gram-negative bacteria that form a barrier to hydrophobic compounds [43,44] .…”

Anti–bacterial activity and brine shrimp lethality bioassay of methanolic extracts of fourteen different edible vegetables from Bangladesh

“…These findings do not correlate with the observations of previous screenings of medicinal plants for antimicrobial activity, where most of the active plant extracts showed activity against Gram-positive strains only [56][57][58][59] . Because Gram-negative organisms were reported to be less susceptible to the action of antibacterials, since they possess an outer membrane surrounding the cell wall, which restricts diffusion of hydrophobic compounds through its lipopolysaccharide covering [60][61][62][63][64][65][66][67] . Besides the difference in sensitivity might be ascribed to the difference in morphological constitutions between Gram-positive and Gram-negative organisms.…”

Phytochemical screening and in vitro bioactivities of the extracts of aerial part of Boerhavia diffusa Linn.

“…The results agree with the findings of the other researchers [34] in which the antioxidant activity of methanol extract of B. diffusa was reported due to the presence of rotenoids (boeravinone G, H and D). Among the rotenoids, boeravinone G plays the major role which is also a polyphenolic compound [34][35][36][37][38][39] .…”