PROBLEM TO BE SOLVED: To provide a simple method that suppresses maturity and corruption caused during transportation of vegetables and fruits, and maintains the freshness of the vegetables and fruits.SOLUTION: Freshness preservatives are characterized by comprising hypochlorous acid water solution supported powder in which a hypochlorous acid water solution is supported to the porous silica powder having pores where the pore of a pore diameter of 70-1000 Å holds 80% or more and having an average particle diameter of 200-2000 μm at 80% or less of the total pore volume of the porous silica powder in a total pore volume, the total pore volume that is 0.3-2.5 cc/g, and so that the available chlorine may become 0.02-40 pts.mass to the porous silica powder of 100 pts.mass.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】 本発明の目的は、青果物の輸送中に生じる成熟、腐敗等を抑制し、青果物の鮮度を維持する簡易な方法を提供する。【解決手段】 全細孔容積0.3~2.5cc/g、該全細孔容積において細孔直径70~1000オングストロームの細孔が80%以上を占める細孔を有し、平均粒子径が200~2000μmの多孔質シリカ粉末に、次亜塩素酸水溶液を、該多孔質シリカ粉末の該全細孔容積の80%以下で、且つ、該多孔質シリカ粉末100質量部に対して有効塩素が0.02~40質量部となるように担持させた次亜塩素酸水溶液担持粉末を含むことを特徴した鮮度保持剤である。【選択図】 なし
