In order to measure the effect of antibacterial nano-covers, the direct contact of covers with meat products mixture was used as a control. Samples were contaminated with standard strains of gram-negative Escherichia coli and gram-positive bacteria Staphylococcus aureus. The samples were compared at specified times (0, 24, 48, and 72 hours). Despite the samples had large numbe...

The catalytic r81e of the pyruvate oxidation factor (1, 2) in the production of active acetate for lipide synthesis by lactic acid bacteria has been described by Snell and Broquist (3). In the course of a survey of the pyruvate oxidation factor (POF) and acetate requirements of a collection of lactic acid bacteria, several strains were found that required either material for growth on gluconate...

  Background and Objective: Vascular endothelial growth factor (VEGF) and its receptors (VEGF-R1 and R2) are major regulators of angiogenesis. This study was designed to assess serum levels of VEGF and VEGF-R1 and their prognostic significance in newly diagnosed childhood acute leukemia. Materials and Methods: For this purpose, VEGF and VEGF-R1 were determined using enzyme linked immuno-sorba...

The growth-enhancing effects of culture filtrates of respiratory pathogenic bacteria, including Haemophilus influenzae, as well as normal floral bacteria other than Neisseria perflava and Branhamella catarrhalis on L-forms of H. influenzae were examined in vitro, using five species of major respiratory pathogenic bacteria and seven species of normal floral bacteria commonly isolated from the sp...

The aim of this study was to assess the effects of inoculation of rhizosphere or endophytic bacteria (Psychrobacter sp. SRS8 and Pseudomonas sp. A3R3, respectively) isolated from a serpentine environment on the plant growth and the translocation and accumulation of Ni, Zn, and Fe by Brassica juncea and Ricinus communis on a multi-metal polluted serpentine soil (SS). Field collected SS was dilut...

Bacterial cellulose (BC) has a range of structural and physicochemical properties that make it a particularly useful material for the culture of bacteria. We studied the growth of 14 genera of bacteria on BC substrates produced by Acetobacter xylinum and compared the results to growth on the commercially available biopolymers agar, gellan, and xanthan. We demonstrate that BC produces rates of b...

Although relatively few microorganisms, primarily various lactic acid bacteria, are known to require an exogenous supply of "folic acid" for growth (Snell and Peterson, 1940; Hutchings, Bohonos, and Peterson, 1941; Niven and Sherman, 1944; Stokes, Keresztesy, and Foster, 1944), the presence of this growth factor has been demonstrated in numerous organisms which develop without added folic acid ...