Oil-in-water nanoemulsions are stable systems with droplet sizes in the 20-200 nm range. The physicochemical properties of these systems may be influenced by the addition of additives. Thus, the influence of ethoxylated (EL) and acetylated lanolin (AL) addition on the droplet size, pH values, electrical conductivity and stability of nanoemulsions was investigated. Then, effect of nano-emulsions...

Hydroxypropyl starch was synthesized by modified sago starch with hydroxypropylation reaction. Hydroxypropyl starch nanoparticles with mean particle sizes of 110 nm are obtained by controlled precipitation through the drop-wise addition of dissolved hydroxypropyl starch solution into excess absolute ethanol. Piperine was loaded onto hydroxypropyl starch nanoparticles and native starch nanoparti...

Studies of susceptibility to bacteriophage have shown that polysaccharides associated with somatic bacterial antigens may inhibit the lytic action of bacteriophages upon susceptible homologous organisms. Levine and Frisch (1933 a,b) demonstrated this inhibitory effect with extracts from certain Salmonella and Shigella cultures. Burnet (1934) confirmed these findings; and Gough and Burnet (1934)...

The purpose of this study was to compare the expression of O-acetylated sialic acids on normal colonic epithelial cells to that on primary and metastatic human adenocarcinoma of the colon and rectum. In 24 cases, the relative percentages of biosynthetically labeled non-, mono-, di-, and tri-O-acetylated sialic acids were measured after hydrolytic release, separation, and identification by paper...

wheat starch is the most common type of starch in iran as well as many other parts of the world with enormous applications in food and non-food products. to improve its physicochemical properties or create new functionalities, starch can be modified by changing its molecular structure. amongst different methods for starch modification, physical methods have received more attention recently. pre...

Wood exposed to the outdoor environment is susceptible to weathering due to a series of chemical, biological and physical processes. Acetylation of wood is known to reduce cell wall moisture content, improve dimensional stability and durability against fungal decay. As a result of these improvements, less stress is created between the coating and the wood surface improving the performance of th...

Recent studies suggest that acetylation of the p53 tumor suppressor protein is not important for its DNA binding activity, as was previously thought. We discuss here a number of theories as to how this modification may serve to regulate the protein's functions.

In this study, we have constructed synthetic peptides which are identical to hyperacetylated amino termini of two Tetrahymena core histones (tetra-acetylated H4 and penta-acetylated hv1) and used them to generate polyclonal antibodies specific for acetylated forms (mono-, di-, tri-, etc.) of these histones. Neither of these antisera recognizes histone that is unacetylated. Immunoblotting analys...

Accumulation of lipid-laden foam cells of monocyte origin plays an important role in atherogenesis. Therefore, for determination of the mechanism of accelerated atherogenesis in Werner's syndrome, studies were carried out on the metabolism of acetylated low density lipoprotein (LDL) by monocyte-derived macrophages from patients with this syndrome. These macrophages showed abnormally high activi...

Intrinsic factors affecting the rate of starch digestion in foods are the physical form of food, shape and crystal structure of the starch granule, recrystallization and retrogradation, amylose-lipid complexes, native α-amylase inhibitors and non-starch polysaccharides [1]. For nutritional purposes, starch is classified into three types based on these intrinsic factors: rapidly digestible starc...