解码凝差异的分子决定因素:南极 (Euphausia superba) 和太平洋白 (Penaeus vannamei) 蛋白质矩阵的多参数评估
Xinghe Li1, Songgang Xia1, Xin Du1
1College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, PR China.
International journal of biological macromolecules
|February 27, 2026
概括
南极的蛋白质凝由于酶而表现出不良的质地. 优化鱼加工可以改善食品应用的凝特性,提高其价值.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 南极是一种丰富的蛋白质来源,但其在食品中的使用受到低凝的阻碍.
- 鱼内源性蛋白酶活性显著影响其功能性质,特别是凝形成.
研究的目的:
- 为了研究南极和太平洋白之间的凝差异背后的分子机制.
- 为改进基于南极的凝制品提供基础.
主要方法:
- 多参数方法:分子相互作用分析,3D微结构成像,3D微结构成像,动态水位分析.
- 对滚筒除的白肉,挤出的红肉和太平洋白的比较分析.
- 传输电子显微镜 (TEM) 用于肌纤维细胞完整性的评估.
主要成果:
- 南极的凝表现出二硫化物键主导的网络,而的凝则依赖于协同的疏水-键.
- 凝表现出优越的弹性和持水能力 (64.95%) 与较低的损失 (2.94%).
- 红肉的加入导致肌纤维细胞降解,降低了凝弹性,尽管二硫化物键增加了.
结论:
- 南极的蛋白酶活性对凝弹性和肌纤维细胞完整性产生负面影响.
- 了解这些分子相互作用是优化鱼加工高价值食品凝产品的关键.
- 研究结果支持减少对外源添加剂的依赖,以为基础的食品配方.
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