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

  • 621 monosodium glutamate, MSG
  • 622 monopotassium glutamate
  • 623 calcium diglutamate
  • 624 monoammonium glutamate
  • 625 magnesium diglutamate

European
  • E620 Glutamic acid [Flavour enhancer] [possible reaction] [possibly GM]
  • E621 Monosodium glutamate [Flavour enhancer] [possible reaction] [LGM]
  • E622 Monopotassium glutamate [Flavour enhancer] [possible reaction] [possibly GM]
  • E623 Calcium diglutamate [Flavour enhancer] [possible reaction] [possibly GM]
  • E624 Monoammonium glutamate [Flavour enhancer] [possible reaction] [possibly GM]
  • E625 Magnesium diglutamate [Flavour enhancer] [possible reaction] [possibly GM]
  • E626 Guanylic acid [Flavour enhancer]
  • E627 Disodium guanylate, sodium guanylate [Flavour enhancer]
  • E628 Dipotassium guanylate [Flavour enhancer]
  • E629 Calcium guanylate [Flavour enhancer]
  • E630 Inosinic acid [Flavour enhancer]
  • E631 Disodium inosinate [Flavour enhancer] [possibly of AO]
  • E632 Dipotassium inosinate [Flavour enhancer]
  • E633 Calcium inosinate [Flavour enhancer]
  • E634 Calcium 5'-ribonucleotides [Flavour enhancer]
  • E635 Disodium 5'-ribonucleotides [Flavour enhancer] [possibly of AO]
  • E636 Maltol [Flavour enhancer]
  • E637 Ethyl maltol [Flavour enhancer]
  • E640 Glycine and its sodium salt [Flavour enhancer] [possibly of AO]