Effect of pH, concentration, and temperature on the strength of cytoplasmic protein foams

✍ Scribed by J. H. Buckingham

• Publisher: John Wiley and Sons
• Year: 1970
• Tongue: English
• Weight: 567 KB
• Volume: 21
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740210901

✦ Synopsis

Abstract

The strength of foams generated from solutions of red clover cytoplasmic protein is dependent on pH, protein concentration, arid temperature. The variation of foam strength as a function of these three parameters has been studied and results indicate that the onset of foam stability occurs over very short concentration and temperature ranges.

A phase diagram for these foams is proposed which defines the differences between stable and unstable states in terms of protein concentration and temperature. The results show that above 40°c only unstable foams are generated, irrespective of protein concentration. Below 40°c, stable foams can be generated provided the protein concentration is greater than a certain critical concentration for the system. A possible implication in bloat studies is suggested.