Table 3.

Effect of storage temperature and time on color and whiteness of albumen gel from duck egg

	L*	a*	b*	ΔE*	Whiteness
Storage time (day)
0	88.35a*	− 2.52a	− 2.45a	5.54f	87.79a
3	81.84b	− 3.76b	− 3.47b	11.88e	81.21b
6	80.98c	− 3.98c	− 3.50b	12.75d	80.24c
9	73.24d	− 4.00c	− 5.38c	22.54c	72.83d
12	71.81e	− 4.14d	− 6.02d	23.13b	69.75e
15	71.44f	− 4.12d	− 6.48e	24.03a	69.09f
Storage temperature
28–30 °C	73.28b	− 4.04b	− 4.65b	20.52a	72.53b
4 °C	82.26a	− 3.43a	− 4.46a	11.85b	81.43a
P value
Temperature	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
Day	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
Temperature × day	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
MSE	0.15	0.00	3.09	0.12	0.12

MSE mean square error

* Means within storage time or temperature with different superscripts are different at P < 0.05