Flavour enhancers are commonly added to commercially produced food products (eg. frozen dinners, instant soups, snackfoods) to make them taste more 'savoury'.
The commonly used flavour enhancers are:
Australian
... suffixes, infixes, and reduplication. Also extremely common is vowel gradation; every root has (not necessarily all distinct) zero, guna[?], and vrdhii[?] grades. If V ...