Table 6.

Mineral contents of the three samples.

Elements	Content (mg/L)
	WS	PS	PWS
Al	0.05 ± 0.00 a	nd	nd
Ca	118.18 ± 0.46 b	63.25 ± 0.11 a	129.00 ± 0.39 c
K	150.25 ± 0.36 a	936.25 ± 0.82 b	1051.25 ± 1.78 c
Mg	29.00 ± 0.00 c	12.83 ± 0.01 a	20.83 ± 0.00 b
Na	56.43 ± 0.22 a	758.75 ± 2.27 c	706.25 ± 3.49 b

Note: nd means not detected. Different letters in the same row represent significant differences according to Duncan’s test (p < 0.05).