background and objectives: the quality of cakes made of wheat flour depends on the quantity and quality of its gluten proteins however, these proteins may have side effects for some people, including the patients with celiac, and the only way to cure this disease is to take a lifelong gluten-free diet. materials and methods: this research aims to produce gluten- free cake by using rice flour an...

BACKGROUND Streptococcus suis is an important infectious agent for pigs and occasionally for humans. The host innate immune system plays a key role in preventing and eliminating S. suis infections. One important constituent of the innate immune system is the protein lysozyme, which is present in a variety of body fluids and immune cells. Lysozyme acts as a peptidoglycan degrading enzyme causing...

Lysozyme from lambda bacteriophage (lambda lysozyme) is an 18 kDa globular protein displaying some of the structural features common to all lysozymes; in particular, lambda lysozyme consists of two structural domains connected by a helix, and has its catalytic residues located at the interface between these two domains. An interesting feature of lambda lysozyme, when compared to the well-charac...

Egg white lysozyme killed or prevented growth of Listeria monocytogenes Scott A in several foods. Lysozyme was more active in vegetables than in animal-derived foods that we tested. For maximum activity in certain foods, EDTA was required in addition to lysozyme. Lysozyme with EDTA effectively killed inoculated populations of 10(4) L. monocytogenes per g in fresh corn, fresh green beans, shredd...

The aim of this work was to evaluate the physicochemical properties of fresh foams based on egg white proteins, xanthan gum and gum Arabic. The distributions of the size of gas bubbles suspended in liquid were determined, as well as density and volume fraction of gas phase of the generated foams. Additionally, the viscoelastic properties in the linear range were measured, and the results were a...

Many measurement schemes have been developed to study the resonant characteristics of a bubble near a surface. The desire is to be able to measure the free field characteristics of such a bubble. For experimental investigations, a trade-off must be made between the size of the apparatus and the free field measurement. Thus there is a need to study the effect of surface interference on the reson...

Many phytopathogenic bacteria, such as Ralstonia solanacearum, Pantoea stewartii, and Xanthomonas campestris, produce exopolysaccharides (EPSs) that aid in virulence, colonization, and survival. EPS can also contribute to host xylem vessel blockage. The genome of Xylella fastidiosa, the causal agent of Pierce's disease (PD) of grapevine, contains an operon that is strikingly similar to the X. c...

A specific antibody for 2,3-dihydro-2,3-dihydroxyaflatoxin B1 (AFB1-diol) was prepared, and its reactivity was characterized for the major aflatoxin (AF) B1 (AFB1) metabolites. Reductive alkylation was used to conjugate AFB1-diol to ethylenediamine-modified bovine serum albumin (EDA-BSA) and horseradish peroxidase for use as an immunogen and an enzyme-linked immunosorbent assay (ELISA) marker, ...

abstract adsorption of proteins on inorganic surfaces may lead to structural and functional changes that are dependent on both the nature of the adsorbed proteins and the physicochemical properties of the inorganic surfaces. chicken egg white lysozyme (e.c 3.2.1.17, mw=14.6 kda) is a small globular protein, that consists of 129 amino acid residues with four disulfide bonds. the aim of this stud...