Effectiveness of aqueous extract of green, black and red tea leaves against some types of gram positive and negative bacteria Hindi Nada Khazal Kadhim1,*, Abdul-Husin Iman Fadhil2, Al-Mahdi Zainab Khudhur Ahmad1, Ewadh Ruqaya M. J.3, Hossain Ahmed Obaid4, Kadhim Mohanad Jawad4, Alnasraui Ali Hussein F.4, Al-Yaseri Amean A.5 1Basic and Medical Science Department, College of Nursing, Babylon University, Babylon Province, Iraq 2College of Biotechnology, Al-Qasim Green University, Babylon Province, Iraq 3DNA Research Center, Babylon University, Iraq 4College of Biotechnology, Al-Qasim Green University, Babylon Province, Iraq 5College of Nursing, University of Babylon, Babylon Province, Iraq *Corresponding Author E-mail: nadakhazal@yahoo.com
Online published on 22 September, 2017. Abstract Objective An evaluation for Antibacterial activity of aqueous extract of Green, Black, Red, and Tea Leaves against gram positive bacteria Staphylococcus aureus, Staphylococcu sepidermidis, Streptococcus pneumonia, Streptococcus feacalis, Streptococcus mutanus, Streptococcus feacalis and gram negative bacteria Escherichiacoli, Salmonella typhi, Moraxalliacatarralis, Pseudomonas aeroginosa, Proteus mirabilis, Klebsiella pneumonia, Enterobacter spp. Acinetobacter, Serratia spp. Methods Three types of aquatic extract of green, black and red tea leaves were used to determine the antibacterial activity. Agar well diffusion method was used in this study. Results All three types of tea aquatic extract exhibited excellent and best antibacterial activity against both gram positive and gram negative bacteria and show good inhibition zone and better than the effect of ciprofloxacin against different types of bacteria. Conclusion Aqueous extract of Green, Black, Red, and Tea Leaves show high antibacterial activity against both gram positive and gram negative bacteria, therefore most types of tee can provide protection to a certain extent against our natural enemies like bacterial pathogens. Top Keywords White, Red and Black tea, Antibacterial, Antibacterial activity. Top |