Table 1.

Changes in a_w, pH and color coordinates of Ulva rigida (UR) during storage at 4 and 16 °C.

Property	Storage Temperature (°C)	Storage Time (days)
		0	2	4	6	8	10	12
aw	4	0.957 ± 0.002	0.956 ± 0.004 a #	0.953 ± 0.002 a #	0.954 ± 0.001 a	0.951 ± 0.004 a	0.943 ± 0.001 b	0.945 ± 0.002 b
	16		0.950 ± 0.002 b	0.945 ± 0.003 c	0.955 ± 0.003 b	0.946 ± 0.001 c	0.943 ± 0.002 c	0.943 ± 0.001 c
pH	4	6.67 ± 0.07 a	7.24 ± 0.11 b #	7.08 ± 0.08 b	6.49 ± 0.11 c #	6.08 ± 0.05 d #	5.84 ± 0.01 e #	7.24 ± 0.05 b #
	16		6.96 ± 0.09 b	7.19 ± 0.03 c	7.67 ± 0.02 d	7.44 ± 0.04 e	7.06 ± 0.09 b	5.86 ± 0.02 f
Drip loss (%)	4	0.04 ± 0.01 a	0.04 ± 0.01 a	0.43 ± 0.06 b #	2.07 ± 0.06 c #	5.17 ± 0.05 d #	7.63 ± 0.07 e #	7.87 ± 0.06 f #
	16		0.04 ± 0.02 a	0.83 ± 0.05 b	2.82 ± 0.07 c	6.80 ± 0.10 d	8.82 ± 0.04 e	9.23 ± 0.06 f
a*	4	−13.25 ± 0.03 a	−14.54 ± 0.03 b #	−12.73 ± 0.36 a	−14.61 ± 0.19 b #	−14.22 ± 0.35 b #	−15.09 ± 0.03 b #	−12.80 ± 0.11 a #
	16		−11.33 ± 0.37 b	−11.86 ± 0.77 b	−10.26 ± 013 c	−5.65 ± 0.07 d	−11.32 ± 0.41 b	−9.93 ± 0.10 c
b*	4	74.62 ± 2.36 a	78.32 ± 2.12 a #	57.22 ± 1.06 b #	52.61 ± 0.30 c #	49.65 ± 1.04 c #	56.22 ± 1.03 b #	62.39 ± 063 d #
	16		59.09 ± 0.38 b	46.86 ± 0.98 c	40.58 ± 0.94 d	30.83 ± 0.40 e	38.37 ± 1.24 d	36.04 ± 3.89 d
L*	4	66.15 ± 0.62 a	65.30 ± 0.87 a	67.83 ± 0.19 a #	61.40 ± 0.56 b #	60.01 ± 0.34 b #	56.35 ± 0.37 c #	51.39 ± 1.42 d #
	16		66.97 ± 1.13 a	62.19 ± 0.72 b	68.04 ± 0.96 a	67.02 ± 0.65 a	64.87 ± 0.39 a	70.01 ± 1.58 c
∆E	4	_	4.29 ± 0.85 a #	17.31 ± 1.05 b #	22.35 ± 1.48 c #	25.53 ± 1.08 c #	20.73 ± 0.93 b #	18.99 ± 1.44 b #
	16		15.51 ± 0.32 a	27.88 ± 0.94 b	34.03 ± 0.95 c	44.26 ± 0.38 d	36.12 ± 1.21 c	38.74 ± 4.00 c

The hash-symbols (#) indicate significant differences between treatments for the same sampling day. Different letters indicate significant differences between consecutive measurement days for the same temperature (p < 0.05). Data are expressed as mean ± standard deviation (n = 3).