We are interested in evaluating analytical methods to measure air bubble size distribution and compactness of fat stabilised foams with air bubble sizes below 30 microns. The measurement should not change foam structure, which is the case when a microscope is used.
Background
At FrieslandCampina Kievit we develop whipping agents. The functionality of these whipping agents is related to different parameters of which foam structure of the fat stabilised foam is one of them. Better understanding of the foam structure could help FrieslandCampina to control and steer its processes and recipe to optimal topping functionality.
Description of the need
We are interested in evaluating analytical methods to measure air bubble size distribution and compactness of fat stabilised foams with air bubble sizes below 30 microns. The measurement must be non-invasive, i.e. it should not change foam structure.
What we know already
We are aware of Dynamic Foam Analyzer from Krüss and microscopic analysis, like CSLM to analyse foam. Microscopic techniques that compress the foam are not suitable, as compression changes the bubble size. New techniques based on ultrasound may offer a solution.
Requirements
The analysis method should capture foam structure in images with analysing software to calculate average bubble size and count of air bubbles in a certain volume or surface.
FrieslandCampina produces and sells consumer products such as dairy-based beverages, infant nutrition, cheese and desserts in many European countries, in Asia and in Africa via its own subsidiaries. Dairy products and BtB ingredients are also exported worldwide from the Netherlands. FrieslandCampina has branch offices in 33 countries and employs just under 24,000 people. Revenues are around 12 billion Euros.
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