Table 3. Total polyphenol contents and physiological activity of P. japonicus with different extract methods

	Total polyphenol (mg GAE/100 mL)	DPPH radical scavenging activity (%)	ABTS radical scavenging activity (%)
PJ-WE	33.58¹⁾±1.02^d2)	4.42±0.30^d	5.02±0.36^d
PJ-HWE	173.24±1.72^c	41.24±0.28^c	27.59±0.37^c
PJ-50E	224.83±8.03^a	61.86±0.92^b	44.11±0.97^a
PJ-70E	211.64±5.43^b	72.01±0.42^a	41.40±0.63^b

All values represent mean±SD.
^a-dValues with different small letters within a column are significantly different by Duncan’s multiple range test (p<0.05).