Carrageenan is
extracted from the seaweed by alkali treatment at high temperature.
The extract is then purified and converted into powder. This is done
either by the gel-press, KCl-freezing, KCl-press, or alcohol
precipitation method.
At the heart of the manufacturing process is the
Quality Control Laboratory. Highly-trained chemists continually
ensure that the parameters are strictly followed and that the
carrageenan being processed passes the specifications on:
pH Viscosity Gel Strength Protein
reactivity
Commercial carrageenan is usually standardized by blending
different batches of carrageenan and
adding sugar or salt to obtain the desired gelling or thickening
properties. |