Table 2. Physicochemical properties for sample groups determined by PI and TBARS

Item	HH	HL	LH	LL	SEM	p-value
Moisture (%)	50.87^a	49.54^b	47.59^c	46.65^d	0.52	^***
Protein (%)	42.04^c	42.71^b	43.69^ab	43.88^a	0.33	^**
Fat (%)	5.59^b	6.15^b	7.02^a	7.87^a	0.10	^*
CIE L*	44.51	45.26	46.67	44.20	0.72	ns
CIE a*	7.63^a	7.56^a	6.57^b	6.83^b	0.27	^*
CIE b*	5.11	5.66	5.82	5.61	0.24	ns
pH	5.96	5.99	6.01	6.07	0.03	ns
Hardness (N)	19.07^b	18.81^b	20.95^a	21.23^a	0.66	^**
Cohesiveness	0.46^a	0.46^a	0.42^b	0.42^b	0.01	^***

Different small letters within different sample groups were significantly different (p<0.05).
p<0.05;
p<0.01;
p<0.001.
PI, proteolytic index; TBARS, 2-thiobarbituric acid reactive substances; HH, PI and TBARS of high levels; HL, PI of high level and TBARS of low level; LH, PI of low level and TBARS of high level; LL, PI and TBARS of low levels; ns, no significance.