PROBLEM TO BE SOLVED: To provide a flavor-improving agent which enhances food/drink in delicious taste, particularly in delicious taste feeling, by addition of a minute amount or imparts woody feeling and dried-fish giving a user an idea of freshly-shaven dried fish, specifically dried bonito to food/drink of dried fish flavor.SOLUTION: The flavor-improving agent includes 2,4,7-tridecatrienal or 4, 7-tridecadienal (except for (E, Z, Z)-2, 4, 7-tridecatrienal and (Z, Z)-4,7-tridecadienal). In a dried fish flavor composition, there included is 10-2ppm-104ppm of these compounds. In the food/drink, there included is 10-3ppb-104ppb of these compounds is provided.COPYRIGHT: (C)2012,JPO&INPIT【課題】微量の添加により飲食品の呈味、特に旨味感を増強し、または、魚節風味飲食品に削りたての魚節、特にカツオ節をイメージさせるウッディー感、節感を付与することができる香味改善剤を提供する。【解決手段】2,4,7-トリデカトリエナールまたは4,7-トリデカジエナール((E,Z,Z)-2,4,7-トリデカトリエナールおよび(Z,Z)-4,7-トリデカジエナールを除く)からなる香味改善剤、これらの化合物を10-2ppm~104ppm含有させた魚節香料組成物、これらの化合物を10-3ppb~104ppb含有させた飲食品。【選択図】なし
