Table 1. Changes in the respiration rate of the summer kimchi cabbages treated with pallet unit-controlled atmosphere packaging during storage

Parameter	Treatment	Storage period (day)
Parameter	Treatment	0	20	40	60	80
Respiration rate (mL CO₂/kg·h)	Control	31.18±1.27⁴⁾^A^a⁵⁾	20.55±6.24^B^b	19.41±3.75^B^b	15.31±4.80^B^b	15.75±6.28^B^b
	PUCA 1¹⁾	31.18±1.27^A^a	22.20±3.34^B^b	17.37±2.71^B^b	17.86±3.47^B^b	17.27±2.97^B^b
	PUCA 2²⁾	31.18±1.27^A^a	22.22±3.92^B^b	19.35±4.20^B^b	23.30±3.60^A^B^a^b	23.76±7.07^A^B^a^b
	PUCA 3³⁾	31.18±1.27^A^a	32.92±2.12^A^a	30.23±2.36^A^a	28.15±4.79^A^a	33.43±4.65^A^a

¹⁾PUCA 1: 0.5% O₂ + 2% CO₂.
²⁾PUCA 2: 2% O₂ + 2% CO₂.
³⁾PUCA 3: 2% O₂ + 10% CO₂.
⁴⁾Each value is mean±SD.
⁵⁾Mean values in the same column (A-B) or row (a-b) followed by different letters are significantly different according to Duncan’s multiple range test (p<0.05).