Antimicrobial activity of Epilobium spp. extracts

Battinelli, Lucia; Tita, B.; Evandri, Maria Grazia; Mazzanti, Gabriela

doi:10.1016/s0014-827x(01)01047-3

Cited by 69 publications

(59 citation statements)

References 4 publications

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“…Polygonum species that were efficient in our study have previously been shown to have various biological activities including antioxidant or antiparasitic effects due to their high phenolic and flavonoid contents (Kim et al, 1994;Peng et al, 2003;Hsu, 2006). Epilobium species have been shown to have high antimicrobial activity (Battinelli et al, 2001) and high macrocyclic tannin contents, mainly of oenothein. A literature search reveals that Polygonum and Epilobium are commonly used as traditional medicinal plants (Wojdyło et al, 2007).…”

Section: Discussionmentioning

confidence: 64%

Screening of plants from diversified natural grasslands for their potential to combine high digestibility, and low methane and ammonia production

Machebœuf

Coudert

Bergeault

et al. 2014

Animal

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A total of 156 plant species from 35 botanical families collected from diversified grasslands in the French Massif Central were screened in vitro for their potential to combine high nutritive value for ruminants and a reduced impact on the environment. The vegetative part of plants were analyzed for their chemical composition and incubated in a batch system containing buffered rumen fluid at 39°C for 24 h. The gas production and composition were recorded, and the fermentation end-product concentrations in the incubation medium and the in vitro true organic matter digestibility (IVTOMD) were determined. The results were expressed relative to perennial ryegrass (PRG) values used as a reference. We observed that no relationship between methane (CH 4 ) and volatile fatty acids (VFA) was evidenced for 12 plants, the fermentation of these plants producing significantly less CH 4 for a similar level of VFA production. In all, 13 plants showed 50% less CH 4 production per unit of organic matter truly digested (OMTD) than PRG. Among these plants, two reduced CH 4 by more than 80% and four species had an IVTOMD higher than 80%. The underlying modes of action seem to be different among plants: some result in an accumulation of H 2 in the fermentation gas, but others do not. In terms of nitrogen (N) use efficiency, the fermentation of 37 plants halved the ratio between ammonia (N-NH 3 ) and plant N content compared with PRG, of which six showed a complete absence of N-NH 3 in the medium. Among these plants, four maintained the IVTDMO at values not significantly different from PRG (P > 0.05). Considering the multi-criteria selection, 16 plants showed simultaneously a reduction of more than 80% in N-NH 3 production and 30% in CH 4 emission per unit of OMTD compared with PRG, including three with an IVTOMD higher than 80%. Overall, the botanical families that reduced simultaneously CH 4 and N-NH 3 most efficiently were the Rosaceae, Onagraceae, Polygonaceae and Dipsacaceae. The Onagraceae also gave high values for IVTOMD.

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Section: Discussionmentioning

confidence: 64%

Screening of plants from diversified natural grasslands for their potential to combine high digestibility, and low methane and ammonia production

Machebœuf

Coudert

Bergeault

et al. 2014

Animal

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“…The present TLC study on great willowherb (70%) ethanolic extract ( Figure 8A1, T3 tracks) and System A setting analysis, respectively, revealed five intense red-orange fl. spots attributed to myricetin derivates (s2˝, s3, s5, s6, and s7), among which two could be of myricetin-3-O-rhamnoside/ myricitrin and myricetin-3-O-glucuronide [28] compounds aside one blue-green fl. spot (s2′′′) attributed to a kaempferol glycoside and one blue fl.…”

Section: Journal Of Planar Chromatography 27 (2014)mentioning

confidence: 99%

Comparative studies on analytical, antioxidant, and antimicrobial activities of a series of vegetal extracts prepared from eight plant species growing in Romania

Pîrvu¹,

Hlevca²,

Nicu³

et al. 2014

Journal of Planar Chromatography – Modern TLC

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SummaryGiven the large applicability in both pharmaceutical and cosmetic field, this work was aimed at analytical (high-performance thin-layer chromatography [HPTLC] method), antioxidant (2,2-diphenyl-1-picrylhydrazyl [DPPH] method), and antimicrobial (diffusion method on Staphylococcus aureus ATCC 6538, Escherichia coli ATCC 8739, and Candida albicans ATCC 10231) studies on a series of whole vegetal extracts and corresponding aqueous, ethyl acetate and chloroform fractions (selective extracts) prepared from eight plant species growing in Romania. Briefly, it was revealed moderate to certain activity against S. aureus ATCC 6538 and E. coli ATCC 8739 in the case of greater burdock leaves (Arctium lappa), beech leaves (Fagus sylvatica) and great willowherb aerial part (Epilobium hirsutum) whole extracts. Purple loosestrife aerial part (Lythrum salicaria) and sea-buckthorn leaves (Hippophae rhamnoides) whole extracts showed only weak activity against these bacteria, while tarragon aerial part (Artemisia dracunculoides), chokeberries leaves

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“…Epilobium species (E. hirsutum, angustifolium, E. parviflorum, E. rosmarinifolium, E. spicatum, E. tetragonum) have been confirmed to have effective antimicrobial [1][2][3], anti-inflammatory [4][5][6] and analgesic [7] properties as well as with certain antiproliferative and cancer preventive effects on prostate tissue [8][9][10][11]. Furthermore, Epilobium species are described as nontoxic [6].…”

Section: Introductionmentioning

confidence: 99%

Epilobi Hirsuti Herba Extracts Influence the In Vitro Activity of Common Antibiotics on Standard Bacteria

et al. 2016

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Epilobium genus has been confirmed as an effective source of natural antimicrobials. However, the influence of Epilobi hirsuti herba derived products on usual antibiotics activity has not been studied. In this study, several standardized Epilobi hirsuti herba extracts (EHE) were evaluated in order to asses their potential effects on usual antibiotics tested on standard Grampositive and Gram-negative bacterial strains in vitro. The results emphasized that the bacterial strains ranged from sensitive (MIC values between 50-200 μg GAE mL -1 ) (S. epidermidis ATCC 12228) to very resistant (E. coli strains), E. faecalis ATCC 29212 being practically immune to EHE. In terms of synergistic interaction, Tetracycline and Ampicillin combinations lead to the most important stimulatory effects, the diameters of the inhibition zone being even 60% bigger compared to the antibiotic alone. Synergistic effects between myricetin(galloyl) derivates and Tetracycline were also revealed on P. aeruginosa and E. coli strains. Together, it clearly demonstrated not only EHE's own antimicrobial properties, but also their capacity to influence the antimicrobial potency of some common antibiotics. These results could be useful for the area of herbal medicines and as potential candidates in managing microbial resistance, but also for physicians and pharmacists using combined antibacterial therapy.

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Antimicrobial activity of Epilobium spp. extracts

Cited by 69 publications

References 4 publications

Screening of plants from diversified natural grasslands for their potential to combine high digestibility, and low methane and ammonia production

Screening of plants from diversified natural grasslands for their potential to combine high digestibility, and low methane and ammonia production

Comparative studies on analytical, antioxidant, and antimicrobial activities of a series of vegetal extracts prepared from eight plant species growing in Romania

Epilobi Hirsuti Herba Extracts Influence the In Vitro Activity of Common Antibiotics on Standard Bacteria

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