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Article Abstract
flowers are rich in anthocyanins and possess various biological activities. Specifically, the antibacterial mechanism of action of anthocyanins remains unknown and was investigated in . A time-kill assay was used to assess the antibacterial activity and the metabolic perturbations in were investigated utilizing liquid chromatography-mass spectrometry (LC-MS)-based metabolomics. Pathway analyses were carried out for metabolites showing ≥2-fold changes. The anthocyanin fraction remarkably reduced the growth of at 4 h by 95.8 and 99.9 % at minimum inhibitory concentration (MIC) and 2× MIC, respectively. The anthocyanin fraction (MIC) had a bacteriostatic effect and was shown to have perturbed glycerophospholipids (1-acyl-sn-glycero-3-phosphoethanolamine, phosphatidylglycerol, diacylglycerol and cardiolipin), amino acids (valine, tyrosine and isoleucine) and energy (ubiquinone and NAD) metabolites at 1 and 4 h. This study demonstrated significant metabolic perturbations of the glycerophospholipid, amino acid and energy metabolism, with these being the key pathways involved in the bacteriostatic activity of anthocyanins from , which may have promise as bacteriostatic agents for -related infections.
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| http://dx.doi.org/10.1099/acmi.0.000535.v5 | DOI Listing |
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