From Silverson Machines, Inc.
Clouding agents are used in soft drink manufacture to give a more natural appearance to products with a low juice content; they can also mask sedimentation and "ringing" - where coloring/flavoring oils rise to the surface of the container during storage. Clouding agents are normally supplied as emulsions similar to flavor emulsions. A typical formulation would contain the following:
* Clouding Agent:The clouding effect is obtained from fractions of oils with as neutral a flavor as possible. Citrus oils are the most widely used; vegetable oil is used, but less common due to poor resistance to oxidation.
* Stabilizer:The emulsion is stabilized with gum, typically gum arabic
* Weighting or Densifying Agents:Added to prevent "ringing." Originally Brominated Vegetable Oil (BVO) was common, but its use is now restricted.Typically resin gums such as damar gum are used.
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