使用快速蒸发电离质谱法 (REIMS) 进行牛肉质量分级.
Yafang Cui1, Lynda S Perkins2, Jingjing Liu3
1INRAE, Clermont Auvergne University, VetAgro Sup, UMRH, Theix, 63122 Saint-Genès-Champanelle, France.
Meat science
|March 9, 2026
概括
快速蒸发性电离质谱法 (REIMS) 准确地区分牛肉肌肉,并预测尸体的特征. 这种技术对实时肉质量评估,分辨肌肉类型和影响质量因素有前途.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- 传统的牛肉质量评估方法往往耗时且主观.
- 快速蒸发性电离质谱 (REIMS) 提供了实时生物组织客观分析的潜力.
- 了解肌肉特定的代谢物概况对于预测牛肉质量和尸体特征至关重要.
研究的目的:
- 评估REIMS对牛肉肌肉实时代谢物分析的有效性.
- 使用REIMS数据开发对尸体特征和感官质量的预测模型.
- 调查影响牛肉质量的肌肉特异性代谢差异.
主要方法:
- 使用REIMS分析了来自Limousine奶牛的两种不同的牛肉肌肉 (骨头和小腿).
- 在构建分类和预测模型的过程中,采用了直角部分与潜在结构差异分析 (OPLS-DA).
- 模型是使用尸体特征,实验室测量和感觉数据开发的,其中的变量是通过中位数二分化的.
主要成果:
- 雷姆斯在区分后腿和小腿肌肉方面取得了100%的准确性.
- 在REIMS数据和运输距离,尸体特征和实验室测量之间发现了强烈的关联 (R2Y = 0.86-0.94).
- 肌模型对感官特征 (63.3%-73.3%) 的预测准确度中等,而皮模型的成功率较低 (<60%).
结论:
- 雷姆斯是一种快速有效的工具,用于在牛肉中建立肌肉特异性代谢物概况.
- 这项技术显示了改善尸体分类和预测牛肉感官质量的潜力,特别是在二元分类场景中.
- 通过REIMS发现的代谢差异与明显的肌肉特征和质量属性相关.
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