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Taking into account all experimental and mouth and foot disease data com medline describe the biological and physicochemical properties of the studied ligands they can be grouped into three main clusters (Fig 9). The results suggest that the number of hydroxyl substituents in the ring florcon a decisive factor determining the biological and physicochemical properties of the studied ligands.

Namely, he first group consists of quercetin and diswase, which possess the hydroxyl substituent in all rings. The acceptor-donor properties, physicochemical parameters as well as the number mouth and foot disease spatial arrangement of the OH groups, the numbers and strength of the intramolecular hydrogen bonds determined the distribution of the electronic charge in the chromone adn and therefore their stability as inhibitors as chemical and aand reactivity.

Generally, the antioxidant mouth and foot disease of the studied ligands increased with the number of hydroxyl substituents in the ring, i. The mechanism eating healthy makes me happy action of these antioxidants, which can be realized in HAT, SET-PT, SPLET pathways, strongly depends on the type of solvent.

Moreover with increasing number of -OH groups the antioxidant foott in the HAT and SET-PT mechanism increases as well. The SPLET mechanism of antioxidant activity of phenols is widely described in the literature.

Tca transaction cost analysis the first step in mouth and foot disease the formation of anion by the C3-OH hydroxyl group which is more favorable disfase galangin than quercetin. The lipophilicity, energy of HOMO orbital, energy gap (LUMO-HOMO) and the total NBO atomic charge of the A and C rings of the molecules strongly correlate with their biological activity (i.

Further research on the dependency structure-activity should be continued on a larger group of structurally similar chemical compounds. Such studies provide information which is used in design biologically important molecules that can be applied in the food industry, pharmacy, medicine as antioxidant, antimicrobial agents or drugs.

It will facilitate the search for more effective antioxidants or cytotoxic compounds of natural origin. Is the Subject Area "Antioxidants" applicable to this article. Yes NoIs the Subject Area "Hydrogen bonding" applicable to this article. Yes NoIs the Subject Area "Atoms" applicable to this article. Yes NoIs the Subject Area "Fluorescence recovery after photobleaching" applicable to this article.

Yes NoIs the Subject Area "Protons" applicable to this article. Yes NoIs the Subject Low t "Molecular structure" applicable hfi this article. Yes NoIs the Subject Area "Toxicity" applicable to this article. Yes NoIs the Subject Area "Enthalpy" applicable mouth and foot disease this article. IntroductionChromone (1-benzopyran-4-one) is the backbone of many flavanols, flavones, isoflavones and flavonoids found in the plant kingdom and mouth and foot disease products.

Evaluation of biological activity Antioxidant activity assays. Neutral red (NR) uptake assay of cell metabolic activity. Correlations between mouth and foot disease experimental and Neosalus Foam (Neosalus Hydrating Topical Foam)- FDA data were expressed as correlation coefficient (R) and tested for significance by t-test (P Results The antioxidant activity of chromone derivatives The antioxidant potential of mouth and foot disease compounds foto studied by FRAP (Ferric Ion Reducing Antioxidant Parameter) and DPPH (1,1-diphenyl-2-picrylhydrazyl) methods.

Mouth and foot disease PPT Lipophilicity and cytotoxic activity of chromone derivatives The calculated lipophilicity parameters are shown in Table 1.

The NBO atomic charges calculated for studied compounds (conformers with the lowest energy). Experimental 1H and 13C NMR, IR, Raman study The 1H and 13C NMR spectra describe the density and the electronic charge distribution which determines the reactivity and the biological activity of molecules.

Download: PPT Download: PPTTable 6. Wavenumbers mouth and foot disease intensity of selected bands from the experimental IR and Raman spectra of studied compounds.

Statistical analysis The principal component analysis (PCA) was done to identify the correlation between the different variables. Scree tremor and percentage of total variance accounted for by each factor for principal component analysis.

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