A summary of our presentation for a short course on oils and fats emulsions and their applications in food systems.

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Influence of Processing and Functional
Ingredients on the Quality of Crystallized
Fat Products
PERNILLE GERSTENBERG KIRKEBY
SENIOR APPLICATION SPECIALIST OILS & FATS, DUPONT NUTRITION & HEALTH
11th Practical Short Course on Functional Lipids
- Oils and Fats Emulsions and their Applications in Food Systems
Florence, Italy – September 2015

2. Functional ingredients
Emulsifiers are defined as a substance which :
• Reduces surface tension and stabilises foam
• Reduces interfacial tension in e.g. (O/W) or (W/O) emulsions
• Facilitates emulsification
• Increases emulsion stability
Polar lipids as well as some proteins and hydrocolloids fit this definition
Hydrocolloids are used in foods in order to improve the nutritional value, to
stabilize and to improve texture
• Pectin, Alginate, Xanthan, Carrageenan, LBG,
Guar gum, Cellulose gum
Antioxidants are added to improve shelf-life
All of these can be found in the DuPont™ Danisco® portfolio of ingredients
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3. Processing related factors
The consistency of fat products depends on:
• SFC profile of the fat blend
• Type and dosage of emulsifier
• Crystallization rate and habit
• Optimal processing
• Configuration of processing line
• Proper emulsion formation
• Temperature profile
• Correct cooling intensity
• Tempering and storage
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4. Why hydrocolloids in low-fat spreads?
Non-milk reduced / low-fat spread:
Improved flavour release
(increased water phase viscosity -> increased water droplet size)
Whey / SMP containing 40% low-fat spread:
Improved low-fat spread stability during production, storage and spreading
(increased water phase viscosity / gelling)
Whey protein addition:
Improved flavor release by destabilizing the W/O emulsion
10/29/2015

5. Final remarks
The correct choice and dosage of functional ingredients
such as emulsifiers, stabilizers and antioxidants in
combination with suitable processing equipment and
processing parameters is key in order to obtain processing
security and high quality products
For more information and the full presentation
please fill out the lead form
Thank you!
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