Stability
If oil or fat is partially removed from a formulation and is replaced with thickened water, an
emulsion is usually formed. Often the function of the hydrocolloid is to stabilise the emulsion,
to prevent separation and, in the case of frozen foods, to control ice crystal formation. New
technology and new ingredients have been developed specifically to address the problem of
ice crystals in frozen foods, but hydrocolloids will continue to play a role. Virtually every ice
cream product sold in retail outlets is stabilised with carrageenan, locust bean gum and/or
guar gum. Low-fat salad dressings, discussed above, also benefit from emulsion-stabilising
properties.
StabilityIf oil or fat is partially removed from a formulation and is replaced with thickened water, anemulsion is usually formed. Often the function of the hydrocolloid is to stabilise the emulsion,to prevent separation and, in the case of frozen foods, to control ice crystal formation. Newtechnology and new ingredients have been developed specifically to address the problem ofice crystals in frozen foods, but hydrocolloids will continue to play a role. Virtually every icecream product sold in retail outlets is stabilised with carrageenan, locust bean gum and/orguar gum. Low-fat salad dressings, discussed above, also benefit from emulsion-stabilisingproperties.
การแปล กรุณารอสักครู่..