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解读即食的纹理恶化:热杀菌过程中动态肌纤维蛋白变化的洞察力
Shuo Wang1, Songyi Lin2, Shuang Li1
1SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034 China.
Food research international (Ottawa, Ont.)
|February 19, 2025
概括
热杀菌通过影响肌纤维蛋白来改变即食的质地. 在加工过程中蛋白质的聚合和降解解释了的硬度,凝聚性和性的变化.
科学领域:
- 食品科学 食品科学 食品科学
- 蛋白质化学 蛋白质化学
- 材料科学 材料科学 材料科学
背景情况:
- 热杀菌对即食的纹理特性产生重大影响.
- 绝育过程中质地恶化的精确机制尚未完全理解.
研究的目的:
- 为了研究在热杀菌过程中肌纤维蛋白的动态变化.
- 为了将这些蛋白质变化与即食的纹理性质变化相关联.
主要方法:
- 对纹理属性的分析 (硬度,凝聚性,性,响应性).
- 监测蛋白质的氧化,展开,交叉链接和聚合物形成.
- 光谱分析 (α-螺旋和随机线圈含量).
- 显微镜技术 (光和原子力显微镜).
主要成果:
- 质地属性最初下降,然后增加,最后随着延长绝育而下降.
- 蛋白质氧化增加,导致展开,交叉链接和聚合.
- 观察到α-螺旋含量显著减少 (22.35%) 和随机线圈含量增加 (21.5%).
- 显微镜证实了蛋白质颗粒的聚合和随后的降解.
结论:
- 肌纤维蛋白聚合和降解是热杀菌期间的纹理变化的主要驱动因素.
- 了解这些蛋白质动态对于优化加工和质量控制至关重要.
- 研究结果为改善加工海鲜产品质感提供了洞察力.
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