Being active ingredient delivery system, the said system, includes the (i) active ingredient, and the (ii) carrier constitution component, at that time, the said carrier constitution component, contains the metal salt of the amorphous, at the same time the delivery system where the active ingredient, is locked by the said carrier constitution component at least, partly is enclosed partly and by the said carrier constitution component. The said active ingredient, the phenol which bitter taste does, for example may be flavonol.有効成分送達系であって、該系が、(i)有効成分、及び(ii)キャリヤー構成成分を含み、その際、該キャリヤー構成成分が、非晶質の金属塩を含有し、かつ有効成分が、該キャリヤー構成成分に少なくとも部分的に固定され、及び該キャリヤー構成成分によって部分的に封入される送達系。該有効成分は、苦い味がするフェノール、例えばフラボノイドであってよい。