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发现 (Crassostrea hongkongensis) 在冷储存期间的质量变化,基于脂组学和蛋白质学
Yuanyuan Hu1, Zhengze Quan1, Zonghan Wang1
1Shenzhen Key Laboratory of Food Nutrition and Health, GuangDong Engineering Technology Research Center of Aquatic Food Processing and Safety Control, College of Chemistry and Environmental Engineering and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
Food chemistry
|April 10, 2025
概括
冷的质量随着长时间的储存和更高的温度而下降,受脂质和蛋白质氧化的影响. 这些氧化变化显著影响的质地,颜色和整体新鲜度.
科学领域:
- 食品科学 食品科学 食品科学
- 海洋生物学 海洋生物学
- 生物化学 生物化学
背景情况:
- 质量对于消费者满意度和经济价值至关重要.
- 冷储存是一种常见的保存方法,但可能导致质量下降.
- 了解质量损失的分子机制对于改善保存至关重要.
研究的目的:
- 为了研究冷储存期间的质量变化.
- 阐明脂质和蛋白质氧化在质量恶化的作用.
- 为提高冷的保存质量提供见解.
主要方法:
- 物理化学分析 (颜色,纹理,水容量,TVB-N).
- 定量性脂管学用于评估脂质变化.
- 定量蛋白质组学用于识别蛋白质变化.
- 相关性分析将分子变化与质量下降联系起来.
主要成果:
- 的质量随着冷时间和温度的增加而下降.
- 观察到显著的蛋白质氧化 (增加碳基,二硫化键,二铁,希夫基) 和脂质氧化 (增加TBARS).
- 脂类药物显示多不和脂质的氧化和水解,其中酸丁胆 (PC) 受到偏好的影响.
- 蛋白质组学发现了结构性蛋白质的广泛氧化和降解,如肌重链 (MHC) 和filamin-C.
- 脂质和蛋白质的氧化降解与质量损失有很强的相关性.
结论:
- 冷储存诱导了的显著物理化学和分子变化.
- 多不和脂质和结构蛋白质的氧化降解是质量恶化的关键驱动因素.
- 这些发现为优化冷的保存技术提供了指导.
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