超声波辅助在羊肉多次冻融中保持理化特性及减少蛋白损失的作用

古明辉,杨泽莎,马萍,葛鑫禹,刘永峰

Application of Ultrasound-Assisted Thawing in the Role of Maintaining Physicochemical Properties and Reducing Protein Loss in Mutton During Multiple Freeze-Thaw Cycles

GU MingHui,YANG ZeSha,MA Ping,GE XinYu,LIU YongFeng

表1 多次冻融羊肉色泽的测定结果

Table 1 Color determination results (L*, a*, b*, h°, ΔE) for multiple freeze-thaw mutton

肉色 Meat color 处理 Treatment 未冻融 Unfrozen treatment 冻融1次 Freeze-thaw 1 time 冻融3次 Freeze-thaw 3 times 冻融5次 Freeze-thaw 5 times 冻融7次 Freeze-thaw 5 times L*值 L* value LT 40.10±0.48a 36.52±0.52a 35.54±0.63a 35.26±0.33a 34.55±0.63a WT 40.10±0.48a 36.48±0.63a 35.05±0.59ab 34.58±0.54ab 33.01±0.80bc UT400 40.10±0.48a 35.33±0.20b 34.54±0.38b 34.18±0.64b 33.63±0.45ab UT320 40.10±0.48a 34.33±0.03c 33.33±0.42c 33.24±0.66c 32.33±0.28c UT180 40.10±0.48a 35.42±0.39b 34.78±0.40ab 34.20±0.52b 34.14±0.37a a*值 a* value LT 9.63±0.29a 8.44±0.14bc 8.16±0.17ab 7.68±0.23ab 7.45±0.22ab WT 9.63±0.29a 9.10±0.13a 8.35±0.24a 7.87±0.10ab 7.72±0.26a UT400 9.63±0.29a 8.54±0.27bc 8.45±0.05a 7.68±0.33ab 7.43±0.15ab UT320 9.63±0.29a 8.77±0.16ab 8.22±0.23a 8.00±0.13a 7.82±0.23a UT180 9.63±0.29a 8.22±0.24c 7.77±0.51b 7.43±0.21b 7.20±0.21b b*值 b* value LT 9.30±0.28a 10.42±0.40a 10.80±0.28a 10.97±0.25a 12.11±0.27a WT 9.30±0.28a 9.25±0.16cd 10.11±0.36b 10.81±0.30a 11.84±0.23a UT400 9.30±0.28a 9.99±0.21ab 10.15±0.14b 10.78±0.38a 11.32±0.48b UT320 9.30±0.28a 8.95±0.21d 9.39±0.14c 9.90±0.36b 10.22±0.23c UT180 9.30±0.28a 9.61±0.18bc 10.32±0.09ab 10.60±0.32ab 11.67±0.46ab h°值 h° value LT 44.21±0.01a 50.97±0.48a 52.91±0.09a 55.00±0.14a 58.38±0.16a WT 44.21±0.01a 45.47±0.07c 50.42±0.14b 53.93±0.33b 56.89±0.30b UT400 44.21±0.01a 49.49±0.25b 50.19±0.18b 54.51±0.16ab 56.71±0.45b UT320 44.21±0.01a 45.57±0.12c 48.81±0.28c 51.04±0.44c 52.57±0.14c UT180 44.21±0.01a 49.44±0.26b 53.04±0.13a 54.95±0.04a 58.30±0.19a ΔE值 ΔE value LT 0 3.93±0.32c 5.01±0.44b 5.46±0.24b 6.57±0.40c WT 0 3.64±0.52c 5.26±0.46b 5.97±0.37b 7.76±0.58ab UT400 0 4.93±0.18b 5.73±0.29b 6.40±0.49ab 7.12±0.26bc UT320 0 5.83±0.05a 6.90±0.37a 7.06±0.52a 8.01±0.24a UT180 0 4.87±0.35b 5.71±0.42b 6.41±0.39ab 6.84±0.19c