Table 2. Treatments used in the present study.

Treatment group	Expected atmosphere	O2 transmission rate of pouch (mL m−2 d−1 atm−1)	CO2 absorberd
1	Normoxia	1.2 × 106 a	−
2	Anoxia	8.0 b	−
3	Anoxia without CO2	8.0 b	+
4	Anoxia	64.0 c	−

^aMicro-perforated polypropylene pouch (thickness, 30 μm; P-plus; Sumitomo Bakelite Co. Ltd., Tokyo, Japan).

^bHigh-barrier laminated (nylon/polyethylene) pouch (thickness, 118 μm; Lamizip^®; As One Co., Ltd., Osaka, Japan).

^cHigh-barrier laminated (nylon/polyethylene) pouch (thickness, 40 μm; P-plus; Sumitomo Bakelite Co. Ltd., Tokyo, Japan).

^dAgeless C^® (Mitsubishi Gas Chemical Co. Inc., Tokyo, Japan).