PROBLEM TO BE SOLVED: To provide a storable duration-improving agent and a method for improving the storable duration, which is capable of improving the storable duration effectively and efficiently without giving any effect to its flavor and aroma in the food having a high protein content and a high pH (5% (w/w) or above protein content and pH 6.0 or above).SOLUTION: The storable duration is effectively improved without giving the effect to the flavor and taste of the food having the high protein content and high pH by using an agent obtained by blending the four components of glycine, trisodium citrate, a glycerol fatty acid ester, and a propolis extract at a fixed rate.COPYRIGHT: (C)2012,JPO&INPIT【課題】高タンパク質かつ高pHの食品(タンパク質含量5%(w/w)以上且つpH6.0以上の食品)において、その風香味に影響を与えることなく日持ち性を有効かつ効果的に向上させる日持向上剤及び日持ち向上方法を提供する。【解決手段】グリシン、クエン酸三ナトリウム、グリセリン脂肪酸エステル、プロポリス抽出物の4成分を一定の割合で配合して得られる剤を用いることで、高タンパク質かつ高pHの食品の風味、呈味に影響を与えることなく、効果的にその日持ち性を向上させる。【選択図】なし
