Abstract:
:Tannic acid, a rich of natural and process-derived phenolic compound, has been shown to be an effective antagonist against viruses and bacteria. In this study, we determined the antimicrobial activity and mechanisms of tannic acid against Staphylococcus aureus with emphasis on inhibiting effect on biofilm formation. Based on the results of time-kill assay, binding ability assay, lysozyme susceptibility assay and the transmission electron microscope, we tentatively speculated that peptidoglycan might be the target of the process that tannic acid destroy the integrity of cell wall, moreover, tannic acid could reduce the biofilm formation at sub-MIC concentrations. These results manifested that natural product tannic acid could serve as a potentially effective candidate for development of novel strategies to treat methicillin-resistant S. aureus infections.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Dong G,Liu H,Yu X,Zhang X,Lu H,Zhou T,Cao Jdoi
10.1080/14786419.2017.1366485subject
Has Abstractpub_date
2018-09-01 00:00:00pages
2225-2228issue
18eissn
1478-6419issn
1478-6427journal_volume
32pub_type
杂志文章abstract::Phytochemical investigation of the twigs of Garcinia nobilis led to the isolation of a new xanthone, named l-hydroxy-2,5-dimethoxyxanthone (1), together with 15 known compounds (2-16). The structures of the new and known compounds were established by means of spectroscopic methods and by comparison with previously rep...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.903398
更新日期:2014-01-01 00:00:00
abstract::Two saponins: scrokoelziside A (1), scrokoelziside B (2), one iridoid glycoside, eurostoside (3), and two flavonoids: nepitrin (4) and homoplantaginin (5), were isolated from the leaves of Scrophularia ningpoensis for the first time. Moreover, eight known compounds: cane sugar (6), harpagide (7), aucubin (8), 6-O-meth...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410802696247
更新日期:2009-01-01 00:00:00
abstract::Designing propolis products for external use involves determining the optimal form of propolis for the introduction into dermatological pharmaceuticals and cosmetic preparations. As a potent ingredient, propolis oil extract from raw material harvested in Lithuania was analysed. The rheological characteristics, content...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.529440
更新日期:2011-09-01 00:00:00
abstract::Two new C-15 enolic acyl phragmalin-type limonoid orthoesters, chukvelutilide G (1) and chukrasine F (2), were isolated from the stem barks of Chukrasia tabularis var. velutina. Their structures were elucidated by their extensive high resolution-electrospray ionization mass spectrometry (HR-ESI-MS), one- and two-dimen...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.682995
更新日期:2013-04-01 00:00:00
abstract::A new oleanane triterpenoid (2) was isolated from the roots of Rubia philippinensis. The structure of 2 was determined by analysis of HRMS and NMR data and identified as a rubiprasin analogue, 16β-hydroxyrubiprasin B. Four related known compounds were also encountered which include rubiprasin B (1), maslinic acid (3),...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1645656
更新日期:2019-07-25 00:00:00
abstract::The main purpose of this study was the characterisation of 'Serra da Lousã' heather honey by using novel statistical methodology, relevant principal component analysis, in order to assess the correlations between production year, locality and composition. Herein, we also report its chemical composition in terms of sug...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410701825004
更新日期:2008-01-01 00:00:00
abstract::This study aimed at evaluating the impact of environmental factors on the accumulation of various components in Hedera helix L. folium collected from different European countries. The obtained results of studied samples showed that the antioxidant capacities were in the range of 0.027 to 0.688 mg/g. Contents of active...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1843029
更新日期:2020-11-04 00:00:00
abstract::The subject of this present work is a group of nine historical pictures shot in Palermo by the Sicilian photographer E. Interguglielmi in 1912. They are nine matte-collodion prints mounted on the original cardboard supports and all of them show foxing stains affecting the paper surface. In order to characterise the ch...
journal_title:Natural product research
pub_type: 历史文章,杂志文章
doi:10.1080/14786419.2016.1180600
更新日期:2019-04-01 00:00:00
abstract::The use of a matrix solid-phase dispersion (MSPD) process to extract polyphenols from hawthorn (Crataegus oxyacantha L.) a deciduous shrub with an expected rich phytochemical profile, has been evaluated. MSPD extracts of fruits and leaves have an outstanding content of polyphenols, although the particular phenolic pro...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1326040
更新日期:2018-05-01 00:00:00
abstract::From the deep-sea-derived fungus Aspergillus candidus, one novel (1) and three known (2-4) p-terphenyl derivates were isolated. The structure of the new compound was established mainly on the basis of extensive analysis of 1D and 2D NMR data. All four isolates were tested for in vitro anti-food allergic and antitumor ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1633651
更新日期:2019-06-24 00:00:00
abstract::One new anthraquinone, 1,8-dihydroxy-2-ethyl-3-methylanthraquinone (1), together with two known compounds octadecanoic acid (2) and cholest-4-en-3-one (3) was isolated from marine actinomycete Streptomyces sp. FX-58. The structure of 1 was elucidated on the basis of spectroscopic methods, especially, the 2D-NMR spectr...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410600899142
更新日期:2006-11-01 00:00:00
abstract::Citrinin dimeric derivatives are bioactive polyketides previously reported from Penicillium, Aspergillus and Monascus fungi species. Due to the large distance between the stereogenic centers of the two monomer units, it was difficult to determine the absolute configuration of the whole molecule (1). In previous work, ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1493590
更新日期:2019-08-01 00:00:00
abstract::As part of continuing our research on diverse C-7 derivatives of camptothecin (CPT), 16 CPT derivatives bearing piperazinyl-thiourea chemical scaffold and different substituent groups have been designed, synthesized and evaluated in vitro for cytotoxicity against five tumor cell lines (A-549, MDA-MB-231, MCF-7, KB and...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1573231
更新日期:2020-07-01 00:00:00
abstract::Continued investigation of the marine alga Laurencia claviformis has led to the isolation of pacifenol, a halogenated sesquiterpene as the major metabolite. The microbial transformation of pacifenol is reported. It was cultivated with a marine strain of Penicillium brevicompactum yielding a new compound. The structure...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410701869440
更新日期:2008-12-01 00:00:00
abstract::The antibacterial activity of essential oil and methanolic extract of Teucrium polium was determined against Pseudomonas aeruginosa, Pantoea agglomerans, Brenneria nigrifluens, Rhizobium radiobacter, Rhizobium vitis, Streptomyces scabies, Ralstonia solanacearum, Xanthomonas campestris and Pectobacterium cartovorum by ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.1000320
更新日期:2015-01-01 00:00:00
abstract::Two new triterpene saponins, albidosides H (1) and I (2), along with the three known saponins were isolated from the barks of Acacia albida. Their structures were elucidated on the basis of extensive 1D- and 2D-NMR studies and mass spectrometry. Albidosides H (1) and I (2) were assayed for their cytotoxicity against H...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1371156
更新日期:2018-04-01 00:00:00
abstract::In this study, 12 compounds, which include a new flavanone 5-methoxy mundulin, were isolated from the leaves, stem bark and twigs of Mundulea sericea (Willd.) A. Chev. (Fabaceae; Papilionoideae). The structures of the compounds were identified based on spectral data analyses. The constituents of M. sericea also showed...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2011.616504
更新日期:2012-01-01 00:00:00
abstract::Two new ent-atisanes ent-1β,3β,16β,17-tetrahydroxyatisane (1), ent-1β,3α,16β,17-tetrahydroxyatisane (2) together with 11 known diterpenes were isolated from the anti-tumour activity fraction of Euphorbia fischeriana Steud. The compounds were identified by detailed spectroscopic analysis, including extensive 2D-NMR exp...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1045904
更新日期:2016-01-01 00:00:00
abstract::A new furanodihydrobenzoxanthone, artomandin (1), together with three other flavonoid derivatives, artoindonesianin C, artonol B, and artochamin A, as well as β-sitosterol were isolated from the stem bark of Artocarpus kemando. The structures of these compounds were determined on the basis of spectral evidence. All of...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.534471
更新日期:2011-06-01 00:00:00
abstract::Magnolia grandiflora (Magnoliaceae) is an evergreen tree with fragrant and showy flowers native to southeastern USA but widely cultivated all over the world and used in cosmetics industry in treatment of skin diseases. Here, we report on the chemical analysis of the essential oil obtained from flowers of plants cultiv...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1303699
更新日期:2017-12-01 00:00:00
abstract::Alphitobius diaperinus is an important pathogen with worldwide distribution that causes severe economic loss of efficiency in broilers. This study evaluates the potential of organic extracts of two strains entomopathogenic fungus Beauveria bassiana (CG71 and UNI40) as a biocontrol agent on A. diaperinus and promotes t...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1514396
更新日期:2019-10-01 00:00:00
abstract::Machaerium, in the family Fabaceae, predominantly is a genus of a Neotropical distribution of trees, shrubs, and lianas occurring from southern Mexico to Brazil and northern Argentina and as far as South America. Several Machaerium species are widely used in traditional medicine and are considered to have multiple med...
journal_title:Natural product research
pub_type: 杂志文章,评审
doi:10.1080/14786419.2014.1003062
更新日期:2015-01-01 00:00:00
abstract::Cochliomycin G (1), a new 14-membered resorcylic acid lactone, together with six known analogues (2-7), was isolated from the culture broth of a marine-derived fungus Cochliobolus lunatus. The planar structure of 1 was established by extensive NMR spectroscopy, and the absolute configuration was elucidated by the comb...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1633646
更新日期:2021-02-01 00:00:00
abstract::One new xanthone, chryxanthone C (1), together with four known analogues (2-5), were isolated from the cultures of Paecilamyces sp. TE-540, an endophytic fungus obtained from the leaves of Nicotiana tabacum L. The structure of 1 was elucidated by comprehensive spectral analysis including HRESIMS and 1D/2D NMR, which w...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1828410
更新日期:2020-10-04 00:00:00
abstract::In this study, essential oil compositions of two Hypericum L. taxa (Hypericum triquetrifolium Turra. and Hypericum aviculariifolium Jaub. et Spach subsp. depilatum var. depilatum (Freyn et Bornm.) Robson) naturally grown in Turkey were determined using gas chromatography and gas chromatography-mass spectrometry system...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2011.636743
更新日期:2012-11-01 00:00:00
abstract::Microwave assisted Diels-Alder cycloaddition of 5-Br-N-benzylpyridinone (2) with methyl acrylate is described to gain an easy access to 7-bromo-2-benzyl-3-oxo-2-aza-5 or 6-carbomethoxy bicyclo[2.2.2]oct-7-enes (3)-(6). The preparation of the ibogaine analogue 20-desethyl-(20-endo)-hydroxymethyl-11-demethoxyibogaine (1...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500160645
更新日期:2006-07-10 00:00:00
abstract::Here is reported the anti Leishmania infantum activity of 48 hexane, CH2Cl2 and MeOH extracts from 16 macroalgae collected on the Iberian Coast. Seven hexane and CH2Cl2Cystoseira baccata, Cystoseira barbata, Cystoseira tamariscifolia, Cystoseira usneoides, Dictyota spiralis and Plocamium cartilagineum extracts were ac...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1434637
更新日期:2019-06-01 00:00:00
abstract::One new furylhydroquinone derivative (1) and seven known compounds (2-8) were isolated from the roots of Lithospermum erythrorhizon Sieb. et Zucc (Boraginaceae). The structure of 1 was elucidated by extensive spectroscopic methods using NMR and MS. The absolute configuration of shikonofuran J (1) was unambiguously det...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1431632
更新日期:2019-06-01 00:00:00
abstract::A simple and efficient method was developed for simultaneous analysis of five illegal residual β2-agonists in cattle hair. β2-Agonists were quantified by ultra high performance liquid chromatography coupled with electrospray ionisation tandem mass spectrometry operating in positive multiple-reaction monitoring mode. T...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1190718
更新日期:2017-02-01 00:00:00
abstract::Meliquercifolins A (1), and B (2), two new coumarins are bearing an acetophenone derivative were isolated from the leaves of Melicope quercifolia along with three known compounds, melicodenines E (3), F (4) and I (5). Structures of two new compounds were identified based on spectroscopic analyses (UV, HR-ESI-MS, 1 D a...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1644634
更新日期:2019-07-22 00:00:00