Table 3 The pH and sensory of ice cream (I2) during storage at –18℃, –6℃, –1℃, and 4℃

Day/−18℃	pH	Sensory	Day/−6℃	pH	Sensory	Day/−1℃	pH	Sensory	Day/4℃	pH	Sensory
0	6.42±0.06^e	9.00±0.00^a	0	6.42±0.06^g	9.00±1.00^a	0	6.42±0.06^c	9.00±0.00^a	0	6.42±0.06^c	9.00±0.00^a
5	6.39±0.07^e	9.00±0.00^a	5	6.64±0.08^f	7.67±0.58^b	5	6.45±0.04^bc	7.76±0.58^b	5	6.55±0.05^b	7.67±1.15^b
11	6.40±0.02^e	9.00±0.00^a	11	6.62±0.03^f	7.33±0.58^b	11	6.47±0.06^bc	6.67±1.15^bc	11	6.60±0.02^b	6.67±1.15^bc
18	6.41±0.03^e	9.00±0.00^a	18	6.66±0.10^def	7.00±0.00^bc	18	6.46±0.06^bc	6.33±0.58^cd	18	6.66±0.06^ab	6.33±0.58^cd
25	6.47±0.03^de	9.00±0.00^a	25	6.61±0.04^f	7.00±1.00^bc	25	6.47±0.01^bc	6.00±0.00^cde	25	6.72±0.15^a	5.33±0.58^de
32	6.58±0.10^bcd	9.00±0.00^a	32	6.64±0.06^ef	6.67±0.58^bcd	32	6.50±0.02^abc	5.33±1.15^def	32	6.75±0.06^a	5.33±0.5^de
39	6.50±0.08^cde	9.00±0.00^a	39	6.61±0.07^e	6.67±0.58^bcd	39	6.51±0.09^abc	5.00±1.00^ef	39	6.78±0.07^a	5.00±0.00^ef
46	6.63±0.11^abc	9.00±0.00^a	46	6.59±0.06^e	6.67±1.53^bcd	46	6.52±0.07^abc	5.00±1.00^ef	46	6.74±0.07^a	4.33±0.58^ef
53	6.66±0.08^ab	9.00±0.00^a	53	6.80±0.05^abc	5.67±0.58^cde	53	6.54±0.04^abc	5.00±1.00^ef	53	6.77±0.06^a	4.00±0.00^f
63	6.61±0.10^abc	9.00±0.00^a	63	6.74±0.06^cde	5.67±0.58^cde	57	6.53±0.04^abc	5.00±0.00^ef
67	6.64±0.06^ab	9.00±0.00^a	67	6.76±0.06^def	5.33±0.58^de	64	6.54±0.04^abc	4.67±0.58^ef
74	6.66±0.04^ab	9.00±0.00^a	74	6.79±0.06^abc	5.33±0.58^de	71	6.58±0.09^ab	4.67±0.58^ef
81	6.69±0.07^ab	9.00±0.00^a	81	6.82±0.04^abc	5.67±0.58^cde	78	6.57±0.06^abc	4.33±0.58^f
88	6.71±0.11^ab	9.00±0.00^a	88	6.84±0.08^abc	5.67±0.58^cde	85	6.58±0.13^ab	4.67±0.58^ef
95	6.74±0.08^a	9.00±0.00^a	95	6.87±0.07^ab	5.33±0.58^de	92	6.59±0.11^b	4.33±0.58^f
102	6.69±0.11^ab	9.00±0.00^a	102	6.89±0.05^a	5.33±0.58^de	99	6.58±0.12^ab	4.33±0.58^f
109	6.65±0.05^ab	9.00±0.00^a	109	6.65±0.05^ef	5.00±1.00^e	106	6.65±0.15^a	4.00±0.00^f

All values are mean standard deviation of three replicates.
^a–g Means within a column with different letters are significantly different (p<0.05).