. 2017 Jan 9;54(2):279–292. doi: 10.1007/s13197-016-2461-z

Table 2.

Effect of optimum level of different essential oils on physico-chemical characteristics of aerobically packaged fresh chicken sausages during refrigerated storage (4 ± 1 °C) (Mean ± S.E.)*

Parameter	Refrigerated storage period (days)
Parameter	Day 0	Day 3	Day 5	Day 10	Day 15	Day 20
pH
Control	6.12^e ± 0.02	6.21^d1 ± 0.01^d1	6.31^c1 ± 0.03^c1	6.42^b1 ± 0.02^b1	6.56^a1 ± 0.04^a1	NE
Clove oil	6.10^b ± 0.01^bc	6.16^b12 ± 0.02^b12	6.25^b2 ± 0.01^b2	6.37^b12 ± 0.04^b12	6.44^ab4 ± 0.03^ab4	6.56^a2 ± 0.02^a2
Holy basil oil	6.14^b ± 0.01^bc	6.18^b12 ± 0.02^b12	6.26^b2 ± 0.02^b2	6.35^b2 ± 0.04^b2	6.43^a4 ± 0.03^a4	NE
Cassia oil	6.11^b ± 0.02^bc	6.16^b12 ± 0.06^bc12	6.27^b12 ± 0.04^b12	6.36^b12 ± 0.06^b12	6.46^ab34 ± 0.03^ab34	6.59^a1 ± 0.02^a1
Thyme oil	6.13^b ± 0.07^bc	6.17^b12 ± 0.05^bc12	6.27^b12 ± 0.06^b12	6.38^b12 ± 0.02^b12	6.49^a23 ± 0.04^a23	NE
TBARS (mg malonadehyde/kg)
Control	0.21^e1 ± 0.02^e1	0.44^d1 ± 0.04^d1	0.74^c1 ± 0.04^c1	1.12^b1 ± 0.06^b1	1.61^a1 ± 0.04^a1	NE
Clove oil	0.16^f23 ± 0.03^f23	0.25^e23 ± 0.01^e23	0.37^d34 ± 0.05^d34	0.60^c34 ± 0.02^c34	0.83^b4 ± 0.04^b4	1.53^a12 ± 0.03^a12
Holy basil oil	0.18^e12 ± 0.03^e12	0.30^d2 ± 0.03^d2	0.54^c2 ± 0.05^c2	0.83^b2 ± 0.04^b2	1.18 ± 0.04^a2	NE
Cassia oil	0.16^d23 ± 0.02^d23	0.26^d23 ± 0.08^d23	0.39^cd34 ± 0.07 ^cd34	0.64^bc45 ± 0.03^bc45	0.86^b4 ± 0.06^b4	1.62^a1 ± 0.03^a1
Thyme oil	0.15^e23 ± .07^e23	0.24^d23 ± 0.05^d23	0.45^c3 ± 0.03^c3	0.72^b3 ± 0.05^b3	1.04^a3 ± 0.02^a3	NE
Moisture content (%)
Control	71.42 ± 0.43	71.65 ± 0.81	71.29 ± 1.14	70.84 ± 0.96	70.49 ± 0.96	NE
Clove oil	71.83^a ± 0.91^a	72.10^a ± 0.56^a	71.68^a ± 0.86^a	71.47^a ± 1.16^a	71.17^ab ± 0.97^ab	70.71^b ± 0.67^b
Holy basil oil	71.64 ± 0.84	71.97 ± 1.01	71.51 ± 0.72	71.16 ± 0.88	70.79 ± 0.88	NE
Cassia oil	71.59^a ± 0.76^a	71.85^a ± 0.89^a	71.52^a ± 0.62^a	71.13^a ± 0.93^a	70.74^ab ± 0.84^ab	70.45^b ± 0.48^b
Thyme oil	71.43 ± 0.88	71.70 ± 0.62	71.37 ± 0.41	70.98 ± 1.06	70.54 ± 0.84	NE
Cooking yield (%)
Control	81.78 ± 0.67	81.67 ± 0.51	81.38 ± 0.93	80.83 ± 0.70	NE	–
Clove oil	81.94 ± 0.42	81.89 ± 0.63	81.67 ± 0.43	81.52 ± 0.40	81.26 ± 0.37	–
Holy basil oil	81.06 ± 0.72	81.01 ± 0.91	80.93 ± 0.84	80.79 ± 0.65	NE	–
Cassia oil	82.32 ± 0.47	82.28 ± 0.87	82.19 ± 0.84	82.02 ± 0.81	80.91 ± 0.52	–
Thyme oil	80.29 ± 0.60	80.23 ± 0.66	80.12 ± 0.67	80.04 ± 0.71	NE	–

n = 6

NE not estimated, TBARS Thiobarbituric acid reacting substances

* Mean ± S.E. bearing different superscripts row wise (alphabet) and column wise (numeral) differ significantly (P < 0.05)