title: Flavour formation by amino acid catabolism.
abstract: Microbial catabolism of amino acids produces flavour compounds of importance for foods such as cheese, wine and fermented sausages. Lactic acid bacteria are equipped with enzyme systems for using the amino acids in their metabolism and are useful for flavour formation of foods. Branched-chain amino acids (Leu, Ile, Val) are converted into compounds contributing to malty, fruity and sweaty flavours; catabolism of aromatic amino acids (Phe, Tyr, Trp) produce floral, chemical and faecal flavours; aspartic acid (Asp) is catabolised into buttery flavours and sulphuric amino acids (Met, Cys) are transferred into compounds contributing to boiled cabbage, meaty and garlic flavours.
authors.affiliation: Department of Food Science, Centre for Advanced Food Studies, The Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark. ya@kvl.dk
authors.forename: Ylva
authors.initials: Y
authors.lastname: Ardö
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000626:Aminopeptidases / Q000378:metabolism; D001419:Bacteria / Q000201:enzymology / Q000378:metabolism; D005421:Flavoring Agents / Q000737:chemistry / Q000378:metabolism*; D005524:Food Technology / Q000379:methods; D006801:Humans; D013457:Sulfur Compounds / Q000737:chemistry / Q000378:metabolism; D013649:Taste; D000637:Transaminases / Q000378:metabolism
chemical_list: D000596:Amino Acids; D005421:Flavoring Agents; D013457:Sulfur Compounds; D000637:Transaminases; D000626:Aminopeptidases