氧化对肌原纤维蛋白热诱导凝胶质构特性及保水性的影响

杨玉玲, 周磊, 游远, 汤晓智, 魏苏萌

The Effects of Oxidation on Textural Properties and Water Holding Capacity of Heat-Induced Myofibrillar Protein Gel

YuLing YANG, Lei ZHOU, Yuan YOU, XiaoZhi TANG, SuMeng WEI

表1 不同氧化程度下MP的氨基酸含量

Table 1 Amino acid content of MP under different degrees of oxidation (mg·g-1)

氨基酸 Amino acid 亚油酸浓度Linoleic acid concentration 0 0.2 mmol·L-1 1 mmol·L-1 2 mmol·L-1 4 mmol·L-1 10 mmol·L-1 Ala 43.85±0.58a 41.47±0.34b 41.08±0.17b 41.64±0.94b 39.39±0.52b 39.83±0.61b Arg 51.97±0.54a 49.81±0.84a 48.14±0.65a 51.23±0.28a 48.35±0.68a 49.05±0.94a Asp 66.03±0.57a 68.67±0.34a 65.96±0.68a 67.76±0.84a 65.99±0.21a 66.63±0.52a Cys 7.23±0.15a 6.97±0.11b 6.82±0.17b 6.68±0.21b 6.52±0.14b 6.27±0.35c Glu 142.85±0.51a 140.38±0.27a 136.95±0.34b 132.62±0.84c 132.99±0.35c 133.78±0.68c Gly 27.19±0.57a 23.12±0.36b 22.33±0.57b 23.58±0.95b 22.35±0.28b 18.64±0.58c His 13.53±0.35a 13.21±0.68a 12.87±0.47a 13.71±0.33a 12.92±0.95a 13.25±0.62a Ile 35.94±0.35a 35.27±0.94a 35.31±0.65a 36.21±0.34a 34.42±0.38a 34.92±0.52a Leu 61.75±0.28a 62.64±0.97a 62.68±1.21a 64.44±0.57b 60.82±0.68a 61.89±0.21a Lys 9.19±0.65a 8.69±0.52a 8.57±0.68a 8.96±0.62a 8.54±0.47a 8.74±0.95a Met 25.16±0.84a 23.01±1.32b 22.28±0.56b 23.32±0.75b 22.53±0.35b 22.41±0.59b Phe 28.68±0.54a 29.17±0.68a 28.12±0.24a 29.72±0.33a 28.13±0.37a 28.38±0.59a Ser 29.13±0.28a 26.48±0.49b 23.73±0.36c 24.96±0.25c 23.67±0.98c 23.72±0.54c Thr 33.75±0.58a 33.51±0.36a 31.36±0.27a 32.96±0.95a 31.37±0.84a 31.53±0.68a Tyr 22.85±0.63a 20.47±0.21a 19.77±0.37a 20.96±0.57a 20.43±0.64a 20.25±0.84a Val 34.23±0.97a 35.19±0.27a 35.81±0.86a 35.12±0.54a 33.44±0.67a 33.62±0.35a