نتایج جستجو برای: whey proteins
تعداد نتایج: 559501 فیلتر نتایج به سال:
UNLABELLED Dairy proteins are amenable to structural modifications induced by high temperature, shear, and moisture; in particular, whey proteins can change conformation to new unfolded states. The change in protein state is a basis for creating new foods. The dairy products, nonfat dried milk (NDM), whey protein concentrate (WPC), and whey protein isolate (WPI) were modified using a twin-screw...
The family of claudin proteins plays an important role in regulating the intestinal barrier by modulating the permeability of tight junctions. The impact of dietary protein on claudin biology has not been studied extensively. Whey proteins have been reported to improve intestinal barrier function, but their mechanism of action is not clear. Recent studies, however, have demonstrated increased i...
Whey proteins can be used as hydrogels and nanoparticle systems for encapsulation and controlled delivery of bioactive compounds. Whey protein concentrate (WPC) hydrogels exhibited pH-sensitive swelling behavior with minimum swelling ratio near the isoelectric point (pI) of whey proteins ( 5.1). The controlled drug release behavior of WPC hydrogels was studied using caffeine as a model drug. Co...
A method for the separation and fractionation of the major whey proteins from a whey protein concentrate (WPC80) by anion-exchange chromatography coupled to a Fast Protein Liquid Chromatography (FPLC) system is proposed. The method is based on the use of an ionic column (Mono Q) and a salt gradient elution by increasing the ionic strength of the elution buffer (Tris–HCl 20 mM plus 0 to 1 M NaCl...
BACKGROUND Leucine (Leu) regulates muscle protein synthesis (MPS) producing dose-dependent plasma Leu and MPS responses from free amino acid solutions. This study examined the role of Leu content from dietary proteins in regulation of MPS after complete meals. METHODS Experiment 1 examined 4 protein sources (wheat, soy, egg, and whey) with different Leu concentrations (6.8, 8.0, 8.8, and 10.9...
Background: It is better to use agricultural by-products or waste for microbial production to reduce costs in the industry. Whey is one of the by-products that are rich in nutrients like vitamins, proteins and essential amino acids. Low-intensity ultrasound stimulation can improve membrane permeability and also help optimize the growth and reproduction of cells. According to high efficiency of ...
A corticosteroid-binding protein was detected in the whey of human colostrum and milk which resembles serum corticosteroid-binding globulin in certain respects: the equilibrium association constants for cortisol and progesterone binding and the apparent molecular size, as determined by Sephadex G-200 chromatography, were similar, and cortisol andd progesterone competed strongly for binding to t...
freeze concentration is a process of concentrating liquid products by freezing the water content and subsequently removing the so-formed ice crystals from the food system. in dairy processing, this technology offers the advantage of minimizing the heat abuse of sensitive milk components, such as proteins and flavors. it thus provides an opportunity for producing dairy ingredients with enhanced ...
Whey proteins are widely used as nutritional and functional ingredients in formulated foods because they are relatively inexpensive, generally recognized as safe (GRAS) ingredient, and possess important biological, physical, and chemical functionalities. Denaturation and aggregation behavior of these proteins is of particular relevance toward manufacture of novel nanostructures with a number of...
Obesity develops due to energy (food) intake exceeding energy expenditure. Nutrients that reduce the positive energy balance are thus being considered as therapies to combat obesity. Here, we review the literature related to the physiological, cellular and endocrine effects of intake of whey proteins, namely α-lactalbumin, β-lactoglobulin, glycomacropeptide and lactoferrin. Moreover, we discuss...
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