Food-Info.net> E-numbers > E900-1000

E921 : L-Cystine

Origin:
An essential amino acid, present in all protein (essential indicates that it is needed by the human body). Derived from proteins, including animal protein and hair.

Function & Characteristics:
Bread enhancer. It stabilises the structure of leavened bread.

Products:
Bread

Acceptable daily intake (ADI) :
None determined

Side effects:
None known.

Dietary restrictions:
None. E921 can be obtained from animal sources, including pork. It should thus be avoided by Muslims, Jews, Hindus and vegans.