The interactions of β-lactoglobulin AB in the presence of cationic surfactants such as Cetyltrimethylammonium bromide and Cetyltrimethylammonium p-Toluenesulfonate have been investigated using a variety of experimental techniques such as conductivity, UV-Vis spectrophotometry and fluorimetry. The conductivity of surfactants aqueous solutions with β-lactoglobulin shows that the cmc of cationic s...

Abstract Oil in water emulsions are commonly stabilized by emulsifying constituents like proteins and/or low molecular weight emulsifiers. The can compete or coexist at the interface. Interfacial properties thus depend on structure of and oil phase resulting interactions. present study systematically analyzed impact fatty acid saturation triacylglycerides phosphatidylcholine interfacial a β-lac...

Aggregation of beta-lactoglobulin occurs mainly via intermolecular disulphide bond exchange. Upon heating, beta-lactoglobulin aggregated which increased with increasing pH. The presence of DTT led to more rapid aggregation and precipitation of beta-lactoglobulin. AlphaCrystallin prevented the aggregation of heat-stressed beta-lactoglobulin and was a more efficient chaperone at higher pH values....

an attempt has been made to analyze the distribution of the beta-lactoglobulin genotype in swamp buffaloes and murrah buffaloes utilizing polymerase chain reaction-restriction fragment length polymorphism(pcr-rflp). blood samples were taken from 50 swamp buffaloes and 50 murrah buffaloes. the dna was extracted by the phenol-chloroform method. the pcr-rflp was performed using beta-lactoglobulin ...

β -Lactoglobulin is capable of binding fat-soluble compounds including vitamin A palmitate and is suggested to specifically enhance intestinal uptake of retinol. In this study, bioavailability of a vitamin-A-retinyl palmitate complex in skim milk and in water-based liquids was investigated in vitamin-A-depleted rats. First, rats were fed a vitamin-A-free pellet diet for 6 wk and were thereafter...

BACKGROUND Cow's milk-derived whey hydrolysates are nutritional substitutes for allergic infants. Safety or residual allergenicity assessment of these whey hydrolysates is crucial. Currently, rat basophilic leukemia RBL-2H3 cells expressing the human IgE receptor α-chain (huFcεRIα-RBL-2H3), sensitized with serum IgE from cow's milk allergic children, are being employed to assess in vitro residu...

An attempt has been made to analyze the distribution of the beta-lactoglobulin genotype in swamp buffaloes and Murrah buffaloes utilizing polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP). Blood samples were taken from 50 swamp buffaloes and 50 Murrah buffaloes. The DNA was extracted by the phenol-chloroform method. The PCR-RFLP was performed using beta-lactoglobulin ...

OBJECTIVE To explore the use of β-lactoglobulin polymerized using microbial transglutaminase and heating to identify whether protein polymerization could reduce in vivo allergenicity and maintain in vitro and ex vivo immunoreactivity for use in tolerance-induction protocols. METHODS Based on previous protocols applied in mice and children, we performed in vivo challenges (using a skin prick t...

The fractal structure of the aggregates in food protein gels was analyzed. Three kinds of food protein gels were prepared: (1) β-lactoglobulin (β-LG) gel; (2) 11S soybean globulin gel; and (3) caseinate gel. From the concentration dependence of the gel elasticity, the fractal dimensions Df of the aggregates in the gels were evaluated, according to the theory of Shih et al. These gels showed the...

The transglutaminase-catalysed incorporation of primary amines (putrescine and monodansylcadaverine) into bovine beta-lactoglobulin has been studied. In the presence of 1 mM-dithiothreitol between 1 and 2 mol of amine can be incorporated per mol of beta-lactoglobulin subunit. There is very little incorporation of amines in the absence of reducing agent. By isolating and sequencing the modified ...