Evaluation of antibacterial properties of tannins isolated from Dichrostachys cinerea

Banso, A; Adeyemo, S. O.

doi:10.5897/ajb2007.000-2262

Cited by 124 publications

(96 citation statements)

References 17 publications

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“…There are several reports published on antibacterial activity of different herbal extracts [18][19][20][21][22][23][24][25] . It supports the earlier investigation that the tannins isolated from the flower possess remarkable toxic activity against bacteria and may assume pharmacological importance [26][27][28][29][30][31][32][33][34][35][36][37][38] . Many antimicrobial screening studies use a relatively small number of microorganisms for testing.…”

Section: Discussionsupporting

confidence: 70%

In vitro antibacterial activity of Hibiscus rosa–sinensis flower extract against human pathogens

Ruban

Gajalakshmi²

2012

Asian Pacific Journal of Tropical Biomedicine

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Section: Discussionsupporting

confidence: 70%

In vitro antibacterial activity of Hibiscus rosa–sinensis flower extract against human pathogens

Ruban

Gajalakshmi²

2012

Asian Pacific Journal of Tropical Biomedicine

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“…In the present study also we observed the tannin presence in the leaves, stem, root, flower and seeds of A. lanata. Previous biological and pharmagological studies on tannins showed that tannins possess anti-inflammatory, anti-viral, anti-bacterial, anti-parasitic, anti-oxidant, anthelmintic, anti-cancer, antiseptic, anti-diuretic properties [38][39][40][41][42][43][44][45][46][47]. The results of the present study confirmed the presence of tannins stems, leaves, flowers, seeds and roots of A. lanata.…”

Section: Discussionsupporting

confidence: 76%

Chromatographic Studies on the Tannins of Aerva lanata (L.) Juss. Ex Schultes

M¹

2012

iosrphr

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S:The present study was intended to establish the HPTLC tannins profile of the medicinally important plant Aerva lanata (L.) Juss. Ex Schultes. HPTLC profiling was performed out by the method described by Harborne and Wagner et al. The TolueneEthyl acetate-Formic acid-Methanol (3: 3: 0.8: 0.2) was employed as mobile phase for tannins. Linear ascending development was carried out in 20 cm x 10cm twin trough glass chamber (Camag, Mutenz, Switzerland) saturated with the mobile phase and the chromatoplate development for two times with the same mobile phase to get good resolution of phytochemical contents. The developed plate was sprayed with 5% Ferric chloride reagent as spray reagent and dried at 100° C in hot air oven for 10 min. The methanolic extract of stem, leaves, root, flower and seeds of A. lanata illustrated the presence of 24 different types of tannins with 24 different Rf values with range 0.01 to 0.93. In general, higher degree of tannins diversity has been observed in vegetative parts when compared to the reproductive parts. Maximum number (10)

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“…These results are in agreement with earlier investigations which showed that antimicrobial agents with high activity against an organism has a low minimum inhibitory concentration while a low active antimicrobial agent gives a high minimum inhibitory concentration (Banso and Adeyemo, 2007;Nitiema et al, 2012).…”

Section: Antimicrobial Activity (Model Agar Diffusion)supporting

confidence: 83%

Myracrondruon urundeuva Allemo: Chemical composition, antioxidant activity, antimicrobial activity and inotropic effect

Santos¹,

Lima²,

Andrade³

et al. 2017

Afr. J. Biotechnol.

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Caatinga biome features species with high therapeutic potential such as Aroeira do Sertão (Myracrodruon urundeuva Allemão) which has long history in folk medicine. This study aimed to chemically characterize the secondary metabolites of hydroethanolic extract and hexane, chloroform, acetate, hydroethanolic fractions from Myracrodruon urundeuva (Allemão) possibly responsible antioxidant and antimicrobial activity, besides to evaluate the inotropic effect of crude extract in the left atrium of Cavia porcellus. Phytochemical composition was evaluated by spectrophotometry and highperformance liquid chromatography (HPLC). Antioxidant activity was assessed by 2,2-diphenyl-1-picryl hidrazyl (DPPH•) scavenging and reactive substances to thiobarbituric acid methods. Inotropic effect was evaluated using the isolated organ model. Data were expressed as mean ± SEM and differences determined by ANOVA followed by Tukey test. Phytochemical screening and the HPLC confirmed the presence of flavonoids, terpenes, tannins. Acetate and Hydroethanolic extract showed inhibition of DPPH values of 81.56 and 93.28% respectively. On the other hand, TBARS reduced in extract were 64.13% in a concentration of 150 µg/mL. Hydroethanolic extract and acetate fraction with concentrations of 50 and 100 mg/mL showed inhibition zones between 11.00 and 20.50 mm suggesting antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis, Klebsiella pneumoniae bacteria and Candida albicans. The isolated atrium model demonstrated that the extract acts non-competitively antagonizing muscle calcium currents, decreasing the force of contraction by about 60%. Flavonoids, terpenes and tannins are responsible for M. urundeuva (Allemão) biological effects.

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Evaluation of antibacterial properties of tannins isolated from Dichrostachys cinerea

Cited by 124 publications

References 17 publications

In vitro antibacterial activity of Hibiscus rosa–sinensis flower extract against human pathogens

In vitro antibacterial activity of Hibiscus rosa–sinensis flower extract against human pathogens

Chromatographic Studies on the Tannins of Aerva lanata (L.) Juss. Ex Schultes

Myracrondruon urundeuva Allemo: Chemical composition, antioxidant activity, antimicrobial activity and inotropic effect

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