Table 4. Effects of pilot-scale plasma-activated water (PAW) treatment on 1,1-diphenyl-2-picrylhydrazyl (DPPH•) scavenging activity (%) of mung bean sprouts during storage at 4°C for 14 days

Storage time (day)	DPPH• scavenging activity (%)
Storage time (day)	Distilled water-treated	NaOCl-treated	PAW-treated
0	66.02±1.53^Ba	65.25±1.35^Ba	67.92±1.27^Aa
3	58.95±1.30^Ab	58.84±2.21^Aa	63.55±3.15^Aa
7	35.84±1.48^Ac	36.54±0.25^Ab	37.24±1.25^Ab
10	34.98±2.21^Ac	29.47±3.14^Ab	30.27±3.10^Ac
14	33.88±2.23^Ac	28.13±2.11^Ab	28.39±2.76^Ad

Plasma discharge time: 30 min, treatment time: 30 min.
Means followed by the same lowercase letter within a column are not significantly different between the same treatment, while those followed by the same uppercase letter within a row are not significantly different between the treatments stored at each storage day (p>0.05).