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Everything about industrial caseinates

12 July 2016

Manufacturing caseinates from milk caseins

Manufacturing soluble caseinates is done from lactic casein or insoluble acid in two steps. The first step is solubilisation by neutralisation, the second is dehydration or drying.

Powdered caseinates (or casein salts) are made from pasteurised skim milk. Effectively, caseins are largest percentage of milk proteins (around 80%). The milk is acidified to bring it to a pH level of 4.6, which causes the casein in the milk to flocculate (precipitate). This step is the solubilisation by neutralisation. Once precipitated and purified (washed), the casein is screened or centrifuged. It is then ground as finely as possible in order to increase the contact surface with the alkaline solution, which will then be added. The caseinates are then dried. The dehydration step can be done in three different ways: Spray drying , cylinder drying, or drying by attrition.

Depending on the nature of the alkali, various types of caseinates may be made: Soda, to obtain sodium caseinates, potash to create potassium caseinates or also calcium hydroxide to create calcium caseinate.

Caseinates: physico-chemical properties and interesting functions for various industrial applications

Caseinates offer excellent technological and functional properties:

  • Whitening effect
  • Emulsifier, thickener and foaming agent
  • Stabilizing agent
  • Moisturizer
  • Viscosity regulator
  • Solubility
  • Neutral taste
  • Connecting power

Applications:

  • Delicatessen: Emulsifying agent, connector and texturizer
  • Bakery: Water retention agent, causes swelling of the paste and a reduction of rancidity.
  • Biscuits: high in caseinate proteins
  • Cooked dishes – sauces – soups
  • Whipped creams/ice creams
  • Cheeses: Improves coagulation properties and overcomes the variations in the protein content of milk
  • Dairy products:
    • Enrichment in protein for yoghurt
    • Processed cheese: viscosity regulator
  • Coffee Creamers: Nutritional interest

Click here to discover caseinates offered by FIT.