TY - JOUR T1 - The Synergism and Antagonism behavior of Aqueous Extraction for Black Tea, Green Tea and Coffee against the Effectiveness of Certain Antibiotics AU - Al-naddawı, Tahreer Hadi Saleh AU - Albaayit, Shaymaa Fadhel Abbas AU - Khalaf, Zainab Zamel PY - 2019 DA - July JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 39 EP - 42 VL - 6 LA - en AB - Increasingantibiotic resistance is the most common concern in the world. Escherichiacoli are a well-known causative agent of various infectious diseases. Thebacterial resistance on the E.Coli was noted against variousantibacterial agents. Thus, the objective of this study is to evaluate theassessment of the green, black tea and coffee in improving antibioticsusceptibility towards E.Coli. Antimicrobial susceptibility test wasperformed to determine the sensivity of E.Coli to Augmantin, Amikacin,Imipenem, Ciprofloxacin, Nitrofurantoin, Pincillin, Cefixime, Tetracyclin,Chloramphenicol and Ceftriaxone. The results show that the E.Coli wasresistant to all antibacterial agents, while Pincillin, amikacin andNitrofurantoin was appeared sensitive to moderate respectively. The aqueousextract of green and black tea have synergistic effect for Chloramphenicol andNitrofurantoin susceptibility,on the other hand, the antagonistic effect was onTetracyclin, Ciprofloxacin and Amikacin activities. The aqueous extract ofcoffee was strongly inhibitory to bacteria at concentrations 5 and 7.5%. Theseresults may suggest using this natural product for increasing some ofantibacterial agents’ effect.  KW - Escherichia coli KW - Antibiotic resistance KW - Black tea and coffee CR - Mbuthia, S. K., Wachira, F. N., & Koech, R. K. (2014). In-vitro antimicrobial and synergistic properties of water soluble green and black tea extracts. African Journal of Microbiology Research, 8(14), 1527-1534. Usha, P. T. A., Jose, S., & Nisha, A. R. (2010). Antimicrobial Drug Resistance-A global concern. Veterinary World, 3(3). Aiyegoro, O. A., Afolayan, A. J., & Okoh, A. I. (2009). Synergistic interaction of Helichrysum pedunculatum leaf extracts with antibiotics against wound infection associated bacteria. Biological research, 42(3), 327-338. Si, H., Hu, J., Liu, Z., & Zeng, Z. L. (2008). Antibacterial effect of oregano essential oil alone and in combination with antibiotics against extended-spectrum β-lactamase-producing Escherichia coli. FEMS Immunology & Medical Microbiology, 53(2), 190-194. McFarland, J. (1907). The nephelometer: an instrument for estimating the number of bacteria in suspensions used for calculating the opsonic index and for vaccines. Journal of the American Medical Association, 49(14), 1176-1178. Esimone, C. O., Iroha, I. R., Ibezim, E. C., Okeh, C. O., & Okpana, E. M. (2006). In vitro evaluation of the interaction between tea extracts and penicillin G against Staphylococcus aureus. African Journal of Biotechnology, 5(11). Hosseini Jazani, N., Ariga, T., Seki, T., Bauer, A. W., Kirby, W. M., Sherris, J. C., ... & Joly-Guillou, M. L. (2006). Synergistic antimicrobial activity of tea and antibiotics. Journal of Biological Sciences, 7(5), 93-103. Ferraro, M. J. (2001). Performance standards for antimicrobial susceptibility testing. NCCLS. Falcão‐Silva, V. S., Silva, D. A., Souza, M. D. F. V., & Siqueira‐Junior, J. P. (2009). Modulation of drug resistance in Staphylococcus aureus by a kaempferol glycoside from Herissantia tiubae (Malvaceae). Phytotherapy Research: An International Journal Devoted to Pharmacological and Toxicological Evaluation of Natural Product Derivatives, 23(10), 1367-1370. Toroglu, S. (2011). In-vitro antimicrobial activity and synergistic/antagonistic effect of interactions between antibiotics and some spice essential oils. Journal of Environmental Biology, 32(1), 23-29. UR - https://dergipark.org.tr/en/pub/epstem/issue//602917 L1 - https://dergipark.org.tr/en/download/article-file/780920 ER -