Marzena Matejczyk1, Renata Świsłocka2, Aleksandra Golonko2, Włodzimierz Lewandowski3, Eliza Hawrylik4. 1. Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Sanitary Biology and Biotechnology, Wiejska 45E, 15-351 Bialystok, Poland. Electronic address: m.matejczyk@pb.edu.pl. 2. Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Wiejska 45E, 15-351 Bialystok, Poland. 3. Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Chemistry, Wiejska 45E, 15-351 Bialystok, Poland. Electronic address: w-lewando@wp.pl. 4. Bialystok University of Technology, Faculty of Civil Engineering and Environmental Engineering, Division of Sanitary Biology and Biotechnology, Wiejska 45E, 15-351 Bialystok, Poland.
Abstract
PURPOSE: The aim of this study was to examine the cytotoxic, genotoxic, antioxidant and antimicrobial activity of caffeic and rosmarinic acids and their salts with Li, Na and K with use of Escherichia coli K-12 recA:gfp strain as a model organism. METHODS: Cytotoxic potency of tested chemicals were calculated on the basis on the dose that confers inhibition percentage such as 20% for each concentrations of analysed chemicals. Genotoxic properties were calculated on the basis of the fold increase (FI) of SFI values normalized with control. Antioxidant potencies were established on the base of DPPH assay. Antimicrobial activity of chemicals were established on the value of minimal inhibitory concentration (MIC). RESULTS: Obtained results indicated that lower concentrations of tested compounds exhibited stronger GFP fluorescence response after rosmarinic acids and their salts treatment. Genotoxic effects seemed to be independent of the salt ions. The caffeic acid salts with Li, Na and K showed reduced genotoxic effect in comparison to the caffeic acid while increased cytotoxic effect than that of caffeic acid. Moreover, caffeinate salts exhibited better antimicrobial activity against E. coli (MIC=250μg/mL) than K caffeinate salt (MIC>500μg/mL). The MIC values of Li, Na and K rosmarinate salts were above 500μg/mL against all tested microorganisms. CONCLUSION: The results of the experiment show that there is no clear positive correlation between the antioxidant potency of caffeic and rosmarinic acids and their Li, Na and K salts and their cytotoxic effect. Used salts ions Li, Na and K do not significantly affect the antioxidant effect of natural phenolic compounds and they do not have a significant impact on the biological parameters such as cyto- and genotoxicity. Perhaps it is connected with the reaction environment including polarity of the solvent (water).
PURPOSE: The aim of this study was to examine the cytotoxic, genotoxic, antioxidant and antimicrobial activity of caffeic and rosmarinic acids and their salts with Li, Na and K with use of Escherichia coli K-12 recA:gfp strain as a model organism. METHODS:Cytotoxic potency of tested chemicals were calculated on the basis on the dose that confers inhibition percentage such as 20% for each concentrations of analysed chemicals. Genotoxic properties were calculated on the basis of the fold increase (FI) of SFI values normalized with control. Antioxidant potencies were established on the base of DPPH assay. Antimicrobial activity of chemicals were established on the value of minimal inhibitory concentration (MIC). RESULTS: Obtained results indicated that lower concentrations of tested compounds exhibited stronger GFP fluorescence response after rosmarinic acids and their salts treatment. Genotoxic effects seemed to be independent of the salt ions. The caffeic acid salts with Li, Na and K showed reduced genotoxic effect in comparison to the caffeic acid while increased cytotoxic effect than that of caffeic acid. Moreover, caffeinate salts exhibited better antimicrobial activity against E. coli (MIC=250μg/mL) than K caffeinate salt (MIC>500μg/mL). The MIC values of Li, Na and K rosmarinate salts were above 500μg/mL against all tested microorganisms. CONCLUSION: The results of the experiment show that there is no clear positive correlation between the antioxidant potency of caffeic and rosmarinic acids and their Li, Na and K salts and their cytotoxic effect. Used salts ions Li, Na and K do not significantly affect the antioxidant effect of natural phenolic compounds and they do not have a significant impact on the biological parameters such as cyto- and genotoxicity. Perhaps it is connected with the reaction environment including polarity of the solvent (water).
Authors: Azza M Abdel-Aty; Alshaimaa M Elsayed; Hala A Salah; Roqaya I Bassuiny; Saleh A Mohamed Journal: Food Sci Biotechnol Date: 2021-03-22 Impact factor: 2.391
Authors: Chaimae Majdi; Carla Pereira; Maria Inês Dias; Ricardo C Calhelha; Maria José Alves; Boutayna Rhourri-Frih; Zoubida Charrouf; Lillian Barros; Joana S Amaral; Isabel C F R Ferreira Journal: Antioxidants (Basel) Date: 2020-04-29