Table 5 Effect of high-pressure enzyme treatment on total polyphenol, total flavonoid, gingerol and shogaol depend on sample type

Treatment	Sample	1)TP (%)	TF (%)	Total (%)	6-G (%)	8-G (%)	10-G (%)	6-S (%)	8-S (%)	10-S (%)
1)HP	FDP	3)2.55±0.00a	0.73±0.01a	1.47±0.01a	1.18±0.01a	0.08±0.00a	0.06±0.00a	0.03±0.00a	0.11±0.00a	0.02±0.00
	HDP	1.91±0.02b	0.30±0.01b	0.56±0.02b	0.49±0.02b	0.03±0.00b	0.00±0.00c	0.01±0.00b	0.00±0.00b	0.02±0.00
	FDS	0.42±0.01d	0.00±0.00d	0.13±0.01d	0.09±0.01d	0.02±0.00c	0.00±0.00c	0.01±0.00b	0.00±0.00b	0.01±0.00
	HDS	1.07±0.02c	0.22±0.01c	0.28±0.03c	0.22±0.02c	0.02±0.00c	0.01±0.00b	0.00±0.00b	0.00±0.00b	0.02±0.01
	F-value	15,659.33***	3,714.67***	2,826.80***	2,453.91***	312.00***	65.00***	51.00***	1,156.00***	N.S

HP, high-pressure enzyme treatment (pectinex ultra SP-L, 100 MPa, 50°C, 2 h); FDP, freeze-dried powder; HDP, hot-air dried powder; FDS, freeze-dried slice; HDS, hot-air dried slice.
TP, total polyphenol; TF, total flavonoids; Total, sum of the 6, 8, 10 gingerol and 6, 8, 10 shogaol; 6-G, 6-gingerol; 8-G, 8-gingerol; 10-G, 10-gingerol; 6- S, 6-shogaol; 8-S, 8-shogaol; 10-S, 10-shogaol.
All values are mean±SD (n=3).
Means with different small letters in the same column differ significantly by Duncan's multiple range test (p<0.05).
p<0.01
, not significant.