Table 2. Effect of synthetic and natural tenderizers on physicochemical, proximate, sensory and textural attributes of restructured spent hen meat slices (RSHS) (Mean±SE)

Parameters C T1 T2 T3
Raw batter
 pH 6.36±0.02c 6.31±0.01c 6.18±0.01a 6.22±0.01b
 Water holding capacity (%) 40.41±0.12a 45.45±0.15b 48.21±0.12d 46.21±0.18c
 Hydroxyproline (% HP/100 g tissue) 0.13±0.02 0.15±0.03 0.16±0.02 0.16±0.03
 Collagen solubility (%) 35.10±0.22a 55.30±0.56b 73.70±0.64d 64.12±0.75c
 Total soluble protein (g protein extracted/100 g total muscle protein) 60.36±0.18a 68.31±0.49b 72.52±0.27c 73.10±0.41c
Cooked product
 Cooking yield (%) 86.57±0.42b 83.88±0.31a 89.59±0.50d 87.56±0.36c
 Cooking loss (%) 13.42±0.56c 16.11±0.56d 10.39±0.56a 12.41±0.56b
 pH 6.56±0.02c 6.35±0.01b 6.21±0.02a 6.24±0.01a
 Moisture (%) 70.09±0.75b 69.90±0.68a 72.02±0.60b 71.56±0.72b
 Protein (%) 21.43±0.56 20.42±0.62 21.71±0.38 21.05±0.47
 Fat (%) 2.75±0.16 2.67±0.22 2.53±0.12 2.46±0.14
 Ash (%) 2.30±0.04a 2.53±0.06c 2.42±0.05bc 2.39±0.03ab
Sensory attribute
 Appearance and colour 7.04±0.03a 7.01±0.03a 7.18±0.06b 7.20±0.08b
 Flavour 7.06±0.05ab 7.04±0.05ab 7.18±0.07b 6.96±0.06a
 Juiciness 7.05±0.12b 7.03±0.07b 7.22±0.06c 6.71±0.07a
 Tenderness 7.04±0.13ab 7.05±0.07ab 7.25±0.06b 6.82±0.07a
 Overall acceptability 7.02±0.05b 7.06±0.09b 7.23±0.04c 6.85±0.02a
Texture profile
 Hardness 10.96±0.19bc 11.04±0.25c 9.45±0.51b 6.48±0.15a
 Stringiness 19.59±0.18c 20.29±0.51c 0.55±0.03b 0.47±0.08a
 Cohesiveness 0.223±0.015 0.317±0.015 0.140±0.005 0.252±0.016
 Gumminess 1.57±0.10 3.04±0.46 0.92±0.04 1.34±0.01
 Resilience 0.81±0.02a 2.73±0.21b 0.63±0.10a 3.37±0.11c
Means with different superscripts differ significantly (p<0.05) in a row; n=6 for each treatment.
C, control; T1, RSHS with 1.25% calcium chloride; T2, RSHS with 1.5% pineapple peel powder; T3, RSHS with 1.5% fig powder; RSHS, restructured spent hen meat slices.