Milk Industry 83:16–18īarfod NM (2001) The emulsifier effect. Elsevier, London, pp 257–283īanks W, Wilson AG (1981) The formulation of cream-based liqueurs. In: Dickinson E, Stainsby G (eds) Advances in food emulsions and foams. Int Dairy J 18:1011–1021īanks W, Muir DD (1988) Stability of alcohol containing emulsions. LWT Food Sci Technol 42:938–944Īllen KE, Murray BS, Dickinson E (2008) Whipped cream-like textured systems based on acidified caseinate-stabilized oil-in-water emulsions. Marcel Dekker, New York, pp 381–427Īguirre-Mandujano E, Lobato-Calleros C, Beristain CI, Garcia HS, Vernon-Carter EJ (2009) Microstructure and viscoelastic properties of low-fat yoghurt structured by monoglyceride gels. In: Garti N, Sato K (eds) Crystallization processes in fats and lipid systems. Milchwissenschaft 43:762–765Īdleman R, Hartel RW (2001) Lipid crystallization and its effect on the physical structure of ice cream. KeywordsĪbrahamson K, Frennborn P, Dejmek P, Buchheim W (1988) Effects of homogenization and heating conditions on physico-chemical properties of coffee cream. ![]() A similar effect is observed in coffee whitener, where protein-emulsifier interactions give improved acid stability, in processed cheese where electrostatic interactions between anionic emulsifiers and proteins can be exploited to alter the texture, and in recombined and concentrated milks where lecithin protein interactions can improve heat stability. This synergy allows a reduction in casein content that improves acid stability if the liqueur is used as a mixer. ![]() In cream liqueur, as well as aiding formation of small, stable emulsion droplets, mono glyceride emulsifiers are able to interact with the casein proteins added for emulsification. ![]() Emulsifiers also play a role in nucleation of fat crystallization in ice cream and whipping cream, and contribute to the structure and stability of these products by promoting the partial coalescence that helps to stabilize the foams. In ice cream and whipped dairy emulsions, the surface activity of emulsifiers allows them to adsorb to the surface of air bubbles in foams, or to the surface of oil droplets in emulsions, thus facilitating formation of smaller bubbles and droplets and helping to control the stability. In this chapter, we review the role of low molecular weight surfactants across a range of products manufactured by the dairy industry. These include their surface-active properties, ability to promote fat crystallization, interactions with proteins, and antimicrobial activity. Low molecular weight emulsifiers are used for a number of functions in dairy products and dairy substitutes.
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