1999
DOI: 10.1016/s1385-8947(98)00141-7
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Studies on the physical and compositional changes in collapsing beer foam

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Cited by 18 publications
(11 citation statements)
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“…Drainage, that is, the downward flow of beer from the foam driven by gravity, begins as soon as the pour is complete. Dale et al (1999) found that a simple exponential law models the first phase of the decay of beer foam mass, which may take about 300 seconds (depending amongst other things on the type and temperature of the beer and the manner of pouring the beer into the glass) and accounts for 85-90% loss of foam mass. In the diagram to the right in Figure 7, the best exponential decay curve for the measured head of the beer is shown, using the formula As drainage proceeds, the foam structure changes from spherical to polyhedral bubble shapes and it shrinks.…”
Section: Getting a Head Around Exponential Decaymentioning
confidence: 99%
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“…Drainage, that is, the downward flow of beer from the foam driven by gravity, begins as soon as the pour is complete. Dale et al (1999) found that a simple exponential law models the first phase of the decay of beer foam mass, which may take about 300 seconds (depending amongst other things on the type and temperature of the beer and the manner of pouring the beer into the glass) and accounts for 85-90% loss of foam mass. In the diagram to the right in Figure 7, the best exponential decay curve for the measured head of the beer is shown, using the formula As drainage proceeds, the foam structure changes from spherical to polyhedral bubble shapes and it shrinks.…”
Section: Getting a Head Around Exponential Decaymentioning
confidence: 99%
“…The concentration of polypeptide material in the foam increases and the foam coarsens through disproportionation (i.e., diffusion of gas from a small bubble to a larger adjacent bubble) and, as Ronteltap (1989) demonstrated, to a much lesser extent under normal condition through coalescence (i.e., merging of bubbles through the rupture of the film between them). This consolidation phase can also be modelled by exponential decay (Dale et al, 1999). Thus, the beer foam collapse is usually modelled through a biexponential model that consists of a fast and slow decay.…”
Section: Getting a Head Around Exponential Decaymentioning
confidence: 99%
“…Vý-sledná křivka odpovídá dvěma fázím rozpadu pěny s konstantami k 1 a k 2 . Činnost přístroje se ověřovala se syntetickým pivem, složeným z roztoku bílkovin a hořkých látek [35].…”
Section: Měření Vodivosti Pěnyunclassified
“…T1 transitions (Biance et al, 2009) induced under shear strain]. Indirect studies of coalescence in foams have been performed, for example, using conductivity profiles (Dale et al, 1999), acoustic measurements (Mü ller & di Meglio, 1999), and neutron (Belaroui et al, 2003) and visible-light scattering (Søndergaard & Lyngaae-Jørgensen, 1996). Bubble collapses in transparent aqueous foams can also be registered by the use of an optical camera working at a high frame rate (Rouyer et al, 2003).…”
Section: Introductionmentioning
confidence: 99%