PROBLEM TO BE SOLVED: To provide a preservation method capable of improving a yield and extending a period before shipping by reducing failure of the citrus, such as decay, without chemicals.SOLUTION: In a method for preserving the citrus in which the citrus is packaged in a packaging bag made of a resin film, the packaging bag includes holes. An area ratio of the holes of the packaging bag is 9.1×10-6-6.5×10-4%. The acid degree A before preserving the citrus in 5-20°C or lower for B days satisfies the following expression (1). 1/162000×B2+7/1800×B+1/2≤A≤-1/81000×B2+2/150×B+9/5 (I)COPYRIGHT: (C)2014,JPO&INPIT【課題】薬品を用いることなく、柑橘類の腐れ等の障害を減らし、歩留まりの向上または出荷期間の延長が可能となる保存方法を提供する。【解決手段】樹脂フィルムの包装袋で柑橘類を包装して保存する柑橘類の保存方法であって、前記包装袋は孔を有し、前記包装袋の開孔面積比率が9.1×10-6~6.5×10-4%であり、前記柑橘類を5~20℃以下でB日間保管する前の酸度Aが下記数式(I)を満たすことを特徴とする柑橘類の保存方法。1/162000×B2+7/1800×B+1/2≦A≦-1/81000×B2+2/150×B+9/5 (I)【選択図】 なし
