Table 3. Changes in pH, titratable acidity, viable cell count, viscosity, peptide concentration, and syneresis during storage

Treatment			Storage period (d)
Treatment			1	5	10	15
pH		Control	4.76±0.02^a	4.66±0.02^b	4.53±0.00^c	4.47±0.04^d
pH		Orange¹⁾	4.64±0.02^a	4.65±0.01^a	4.48±0.01^b	4.46±0.02^b
Titratable acidity (%)		Control	0.77±0.01^d	0.87±0.00^c	0.94±0.02^b	0.97±0.11^a
Titratable acidity (%)		Orange	0.83±0.01^d	0.90±0.02^c	0.98±0.02^b	1.01±0.03^a
Viable cell (CFU/mL)		Control	10.17±0.12^b	10.20±0.10^b	10.60±0.15^a	10.60±0.00^a
Viable cell (CFU/mL)		Orange	10.23±0.12^c	10.20±0.02^c	10.37±0.06^a	10.36±0.23^a
Viscosity (cps)		Control	20,689±1,361^c	44,933±10,399^b	57,367±4,983^a	66,689±20,367^a
Viscosity (cps)		Orange	29,822±8,664^c	48,956±4,721^b	53,956±8,833^b	73,756±21,977^a
Peptide concentration (mg/mL)		Control	0.21±0.00	0.21±0.00	0.21±0.00	0.21±0.00
Peptide concentration (mg/mL)		Orange	0.33±0.00	0.33±0.00	0.33±0.00	0.33±0.00
Syneresis (%)		Control	29.63±3.86^b	31.18±1.40^b	37.39±1.01^a	38.05±1.26^a
Syneresis (%)		Orange	33.63±2.95^b	36.25±0.95^ab	36.85±2.66^ab	40.04±0.64^a
Color	CIE L* (Lightness)	Control	89.57±1.24^a	90.22±0.58^a	86.90±0.48^b	88.16±0.35^b
	CIE L* (Lightness)	Orange	87.59±1.16	86.01±0.91	86.35±0.13	87.22±0.68
	CIE a* (Redness)	Control	–4.37±0.50^b	–4.57±0.17^c	–3.35±0.19^a	–3.96±0.16^b
	CIE a* (Redness)	Orange	–2.51±0.50	–2.84±0.05	–2.80±0.02	–2.55±0.26
	CIE b* (Yellowness)	Control	9.04±1.69^a	8.71±0.85^a	6.19±0.45^b	7.74±0.42^a
	CIE b* (Yellowness)	Orange	17.49±1.92^a	14.53±1.43^b	14.74±0.19^b	15.98±1.08^a

Values are mean±SD (n=3).
Yogurt added with 2.5% orange paprika juice.
Different small letters (^a–d) in the same row indicated significant difference (p<0.05).