One of the key texturising aspects of hydrocolloids is the ability to gel and solidify fluid
products. For example, in gelled milk desserts, even low levels of carrageenan will form a
solid milk gel. Other classic gelling agents are pectin, gelatin and agar. Many others, however,
will form a gel under specific conditions. Certain grades of alginates form gels with calcium
ions. Xanthan and locust bean gum do not gel individually but together they display synergy
and form a strong cohesive gel. Methyl cellulose and hydroxypropylmethyl cellulose are