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1.
Antibacterial screening of petroleum ether, chloroform, ethyl acetate, methanol and aqueous extracts of Eupatorium glandulosum leaves exhibited a broad spectrum of inhibitory activity against Gram (+) and Gram (-) pathogenic bacteria. 相似文献
2.
The antimicrobial activity of Hyamatantus sucuba roots methanol extract, fractions prepared from this extract (n-hexane, CHCl(3), EtOAc, and n-butanol) and some isolated compounds were evaluated against some Gram(+) and Gram(-) bacteria and yeasts. 相似文献
3.
The antibacterial activity of methanol extracts of ten moss species and fractions prepared from 80% methanol extract of Hylocomium splendens were evaluated by disk diffusion method. Nine moss species showed antibacterial activity against Gram (+) bacteria, in particular H. splendens and its ethyl acetate fractions showed stronger activity. Enhancement of antibacterial activity against Staphylococci by UV-A light irradiation was demonstrated in the extracts of Bartramia pomiformis, Ceratodon purpureus and Neckera douglasii. 相似文献
4.
Antimicrobial activity of Datura innoxia and Datura stramonium 总被引：1，自引：0，他引：1
The antibacterial activity of the methanol extracts of the aerial parts of the Datura innoxia and Datura stramonium was investigated. The extracts showed activity against Gram (+) bacteria in a dose dependent manner. Little or no antibacterial activity was found against Escherichia coli and Pseudomonas aeruginosa. 相似文献
5.
M Rosado-Vallado W Brito-Loeza G J Mena-Rejón E Quintero-Marmol J S Flores-Guido 《Fitoterapia》2000,71(5):570-573
The methanol and water extracts of six Fabaceae species, traditionally used in Mayan medicine for the treatment of diarrhoea and eye infections, were phytochemically screened and tested for in vitro antimicrobial activity. Four species showed activity against Gram positive bacteria, five exhibited some activity against Candida albicans, two exhibited activity against Aspergillus niger and only one, Mimosa pigra, inhibited growth of Pseudomonas aeruginosa. None of the extracts was active against Escherichia coli. 相似文献
6.
The methanolic extract of Verbascum sinuatum inflorescences and isolated compounds were tested for their antibacterial activity against 13 Gram(+) and Gram(-) bacteria and for their allelopathic activity against radish. 相似文献
7.
Methanol extracts of the leaves of Tagetes terniflora and ethyl acetate and aqueous fractions showed different degrees of activity against Gram positive and Gram negative strains. 相似文献
8.
Extracts from rhizomes of Hedychium spicatum were tested for their antibacterial and antifungal activity. Essential oil, petroleum ether and chloroform extracts showed inhibitory activity against Gram (+) and Gram (-) bacterial cultures, including a strain of methicillin and vancomycin resistant Staphylococcus aureus and fungal cultures. 相似文献
9.
The alkaloidal fraction from Himatanthus lancifolius barks demonstrated a broad-spectrum in vitro antimicrobial activity for most of the Gram (+) and Gram (-) tested microorganisms. 相似文献
10.
The essential oil of Achillea clavennae was investigated for its antibacterial activity against some respiratory tract pathogens. Maximum activity was observed against Klebsiella pneumoniae and penicillin-susceptible and penicillin-resistant Streptococcus pneumoniae. The oil also exhibited strong activity against Gram (-) Haemophilus influenzae and Pseudomonas aeruginosa. Gram (+) Streptococcus pyogenes was the most resistant to the oil. 相似文献
11.
The essential oil, chloroform extract and seven sesquiterpenoids compounds newly isolated from the oleo-gum-resin of Commiphora mukul showed a wide range of inhibiting activity against both Gram (+) and Gram (-) bacteria. 相似文献
12.
Djilas SM Markov SL Cvetković DD Canadanović-Brunet JM Cetković GS Tumbas VT 《Fitoterapia》2006,77(5):401-403
The antimicrobial and free radical scavenging activities of petroleum ether, chloroform, ethyl acetate, n-butanol and water extracts of Teucrium montanum were investigated. Ethyl acetate, chloroform and n-butanol extracts expressed a wide range of inhibiting activity against both Gram (+) and Gram (-) bacteria. n-Butanol extract possessed potent DPPH free radical scavenging activity. 相似文献
13.
The antibacterial activity of essential oils of Pimenta racemosa var. terebinthina and P. racemosa var. grisea was determined against Gram (+) and Gram (-) bacteria. P. racemosa var. grisea demonstrated a more pronounced activity. These data would indicate the potential usefulness of the variety grisea as a microbiostatic, antiseptic or disinfectant agent. 相似文献
14.
Tasdelen Fisgin N Tanriverdi Cayci Y Coban AY Ozatli D Tanyel E Durupinar B Tulek N 《Fitoterapia》2009,80(1):48-50
The in vitro antimicrobial activity of Ankaferd Blood Stopper (ABS) was assessed on 102 clinical isolates from both Gram negative and Gram positive bacteria and four standard strains, including MRSA ATCC 43300, MSSA ATCC 25923, P. aeruginosa ATCC 27853 and E. coli ATCC 35218. ABS was significantly active against all bacteria investigated. 相似文献
15.
《Scandinavian Journal of Forest Research》2012,27(1-4):165-175
Bacteria inhabiting the xylem of Norway spruce (Picea abies (L.) H. Karsten) were investigated. The trees had been wounded and artificially inoculated with fungi and bacteria obtained from wounds of naturally infected spruce. One and five growing seasons after inoculation the Gram‐negative bacterial population present in the stem of inoculated trees were analysed. The Gram‐negative bacteria isolated from the trees were identified on the basis of morphological, biochemical and physiological tests and whole‐cell fatty acid composition. The predominant strains were Enterobacteriaceae fermenter strains (E. agglomerans or E. sakazakii), fluorescent and yellow pigmented Pseudomonas, Acinetobacter and Moraxella spp. All Gram‐positive bacteria were Bacillus species. The Gram‐negative bacteria of Norway spruce differed from the Gram‐positive species in possessing stronger lipolytic activity and in their ability to utilize pine resins for growth. Gram‐positive bacteria were generally able to utilise cellulose and hemicellulose, whereas among the Gram‐negative bacteria only one xylanolytic (yellow Pseudomonas) strain was found. 相似文献
16.
Antibacterial activity of Ferula gummosa essential oil was studied against bacterial laboratory ATCC standards using the disk diffusion method. The results showed activity against Gram(+) bacteria and Escherichia coli. Little antibacterial activity was found against Pseudomonas aeruginosa. 相似文献
17.
Mangathayaru K Lakshmikant J Shyam Sundar N Swapna R Grace XF Vasantha J 《Fitoterapia》2005,76(7-8):752-754
The methanol extract of Leucas aspera flowers, its fractions, the alkaloidal residue and the expressed flower juice, tested for antimicrobial activity, showed good antibacterial activity for methanol extract and methanol fraction with maximum activity for the alkaloidal residue. 相似文献
18.
Locally prevalent pathogenic bacteria 189 Gram (-) and 135 Gram (+) strains, all isolated from pediatric patients severely infected, were tested in vitro against 11 essential oils from commercial origin. All the strains showed resistance to selected antibiotics. Cinnamomum verum, Origanum vulgare and Thymus vulgaris exhibited the highest and broadest antibacterial activity. Emphasis is made in the potential implications of these resources, uncommon at the clinical setting of the study, employed against non-commercial, locally pathogenic strains, being a step to submit in the ensuing period essential oils from plants used in Mexican traditional medicine. 相似文献
19.
The antimicrobial activity of some lichens from south Spain has been studied and some of plant constituents were identified. Activity against some Gram (+) bacteria has been observed in lichens containing usnic acid. 相似文献
20.
The total antioxidant activity, total phenolic content and reducing power of methanol and water extracts of four lichen species, Bryoria fuscescens, Dermatocarpon intestiniformis, Peltigera rufescens and Pseudevernia furfuracea, were determined in vitro. Water and methanol extracts of P. rufescens showed the highest antioxidant activity. However, there was no correlation between antioxidant activity and total phenolic content of the extracts. Although the methanol extract of P. furfuracea had the highest total phenolic contents, it exhibited low antioxidant activity. In contrast, there was a strong correlation between reducing power and total antioxidant activity of the extracts. The highest reducing power was determined for the methanol extract of P. rufescens. 相似文献