Two different types of condensed tannins (CTs), which were extracted and purified from tilia (Tilia L.) black locust (Robinia pseudoacacia), studied tested against two kinds bacteria, including Gram-negative Gram-positive, avian pathogenic E. coli (APEC) Staphylococcus epidermidis (S. epidermidis) respectively, by minimal bactericidal concentrations (MBCs) scanning electron microscopy (SEM). Bo...

abstract: essential oils are commonly used to treat minor health problems. in this study the chemical compositions of lavandula officinalis and thymus vulgaris were determined by gas chromatography and mass spectrometry. gc/ms analysis of t. vulgaris resulted in thymol as the major oil component where as methyl sulfony exhibited as the most abundant constituent of l. officinalis. the antibacter...

Abstract Introduction: The aim of this study was to identify the antibacterial components in the ethanol extraction of Aloe vera against four clinically frequent pathogenic  bacteria. Materials and Methods: In this in-vitro study, Aloe vera extraction was prepared by dissolving 500 grams of the powder in 5L of 95% ethanol. The antibacterial activity of the extraction against Staphylococcus a...

Introduction: Aloe Vera compounds have inhibitory activity on fungi, bacteria, and viruses. This study examines the antibacterial activity of A. Vera purified extracts including gel, boiled skin, boiled gel, and distilled extract against pathogenic bacteria, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Klebsiella pneumonia and Pseudomonas aeruginosa were elucidated. Method: Th...

OBJECTIVE To study the in-vitro antimicrobial activity of Cefpirome: A new fourth generation Cephalosporin in comparison with other agents against clinically significant Gram-negative and Gram-positive bacteria. SETTING A multi-center in-vitro study was conducted in 13 centers. MATERIALS AND METHODS Bacterial isolates--A total of 1300 isolates were collected from different clinical laborato...

In order to develop antimicrobial mixtures which provide broad-spectrum antimicrobial activity for use with cultured cell autografts, several individual antimicrobial agents, in concentrations non-toxic for cells in culture, were tested against a variety of bacteria and Candida spp. isolated from burn patients. An agar well diffusion topical assay was used. Antimicrobials active against Gram-po...

introduction: aloe vera compounds have inhibitory activity on fungi, bacteria, and viruses. this study examines the antibacterial activity of a. vera purified extracts including gel, boiled skin, boiled gel, and distilled extract against pathogenic bacteria, staphylococcus aureus, methicillin-resistant s. aureus (mrsa), klebsiella pneumonia and pseudomonas aeruginosa were elucidated. method: th...

introduction: antibiotic resistance among bacteria in particular those producing extended spectrum beta lactamases (es- bls) has a very significant role in hospital acquired infections. some of the gram negative bacilli including klebsiella pneu- monia and escherichia coli are known to be esbl producers which cause uncontrollable infections because they are also often resistant to other antimic...

Antimicrobial agents are most often tested against bacteria in the log phase of multiplication to produce the maximum bactericidal effect. In an infection, bacteria may multiply less optimally. We examined the effects of several classes of antimicrobial agents to determine their actions on gram-positive and gram-negative bacteria during nongrowing and slowly growing phases. Only ciprofloxacin a...