Table 7 Hardness of Shepherd’s purse leaf and root by freezing and thawing methods

Treatment	Freezing method	Thawing method	Hardness(g/cm2)
			Leaf	Rot
			Raw			1,359.50±359.56	3,968.95±1,325.96
Blanched			1,348.25±591.79	2,876.25±1,054.66
Blanched	-20°C	25°C	860.00±495.01	5,788.25±1,967.72
		Running water	672.75±575.49	5,779.25±2,010.48
		Radiofrequency	704.25±394.64	6,317.00±2,129.97
	-40°C	25°C	494.00±285.35	6,286.75±2,137.37a
		Running water	460.00±303.61	4,825.25±1,387.38b
		Radiofrequency	622.50±298.07	5,596.00±1,556.76ab
	Immersion (-60°C)	25°C	541.50±277.67	6,179.75±1,907.60
		Running water	393.75±261.63	6,123.00±1,273.64
		Radiofrequency	414.25±295.32	6,437.25±1,761.67

Values are significantly different at p<0.05 by t-test.