Journal
FOOD RESEARCH INTERNATIONAL
Volume 161, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2022.111791
Keywords
Critical micelle concentration; Aerosol whipping cream; Emulsifier; Foam stabilisation mechanism
Categories
Funding
- German Ministry of Economic Affairs and Energy (via AiF)
- FEI (Forschungskreis der Ernahrungsindustrie e.V., Bonn, Germany) [AiF 19355 N, AiF 21506N]
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The concept of critical micelle concentration is important for the application of emulsifiers, and this study investigates its application in aerosol whipping cream.
The concept of critical micelle concentration (CMC) is an important principle for the application of emulsifiers in various fields, not least in the production of food emulsions. In general, the application of emulsifier concen-trations > CMC, often 10-20 times CMC, is suggested, to ensure the generation of stable emulsions. Typically, the concept of CMC is only discussed for emulsions or foams, but not simultaneously for liquid emulsions that are to be foamed. This study investigates the CMC concept for aerosol whipping cream (AWC), a system in which emulsion stability has to be guaranteed during storage and foam build up and stability has to be enabled upon foaming. Model AWC (30 g.100 g-1 fat; 6/1 MPa) was processed in the presence of various concentrations of a medium chain saturated monoacylglyceride (cme-sMAG: 0 - 2.0 g.100 g-1). It was found that similarly to the CMC concept in emulsions, the application of me-sMAG in model AWC has to be divided into three sections: i) cme-sMAG < CMC; ii) cme-sMAG & AP;CMC; iii) cme-sMAG > CMC.
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