Table 2
Nitr ite scavenging abilities of water extracts from C. retusus flesh by different extraction conditions

Concentration (mg/mL)		Extract1)
		25W	80W	110W
		pH 1.2	0.1	5.39±1.622)^a3)	1.97±0.66^b	5.08±0.44^a
0.3	19.27±2.13^a		14.69±1.52^b	19.88±1.65^a
0.5	33.47±0.50^b		20.18±0.76^c	35.96±1.17^a
1.0	59.32±1.43^c		64.04±0.38^b	66.16±0.53^a
pH 3.0	0.1	4.83±0.35^b	9.38±1.28^a	-
	0.3	8.29±0.93^b	14.33±0.46^a	2.38±0.89^c
	0.5	16.04±0.58^b	21.61±0.82^a	12.40±2.01^c
	1.0	16.42±1.51^c	37.86±4.00^a	19.75±1.23^b
pH 6.0	0.1	1.71±0.24^b	-	2.95±0.11^a
	0.3	3.50±0.35^a	0.59±0.09^b	3.23±0.76^a
	0.5	7.16±0.71^a	1.91±0.22^c	5.33±0.63^b
	1.0	7.86±1.33^a	4.84±0.72^b	8.06±2.92^a

25W, water extract at room temperature; 80W, water extract by reflux extraction at 80°C;110W, water extract by pressure heating extraction at 110°C.
Values are mean±SD of triplicate determinations.
Values with different superscript alphabet in the same raw were significantly different among group at p<0.05 level by Duncan’s multiple range test.