评估牛肉的感官属性和物理化学特征:对中间与正常pH的终端条纹肉片进行比较研究
Iliani Patinho1, Cecylyana Leite Cavalcante1, Erick Saldaña2
1Department of Agri-food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture, University of Sao Paulo, Piracicaba, SP 13418-900, Brazil.
Food research international (Ottawa, Ont.)
|December 21, 2023
概括
尼罗尔牛肉具有中间的最终pH值 (pHu) 是更加多汁,并且与正常的pHu牛肉有不同的颜色属性. 在两种pHu类别之间,消费者接受度没有显著差异.
科学领域:
- 食品科学 食品科学 食品科学
- 肉类科学 肉科学
- 感官分析 感官分析
背景情况:
- 牛肉的质量是由感官属性,如质地,味道和果汁度来决定的.
- 内在和外在因素影响这些品质.
- 最终pH值 (pHu) 是影响牛肉特性的一个关键因素.
研究的目的:
- 调查中间 (pHu ≥5.8) 和正常 (pHu <5.6) 终极pH值对内罗尔牛肉质量的影响.
- 评估不同的pHu类别的感官属性和消费者偏好.
- 探索pHu,衰老和肉色之间的关系.
主要方法:
- 使用了优化描述型资料 (ODP) 方法与20名训练有素的评估人员.
- 与135名消费者进行了快乐的测试和检查所有适用的 (CATA) 任务.
- 分析的肉质颜色 (L*,b*,色) 和肌球蛋白含量 (脱氧化球蛋白,氧化球蛋白).
主要成果:
- 中间的pHu牛肉样本比正常的pHu样本有显著的多汁.
- 根据pHu和衰老,观察到颜色属性 (L *,b *,色) 和氧化球蛋白的显著差异.
- 与28日相比,第3天的脱氧美球蛋白水平更高,特别是在中间的pHu牛肉中.
- 两组pHu之间没有发现消费者接受度的显著差异.
结论:
- 最终pH值显著影响牛肉的果汁度和颜色,中间pHu牛肉的果汁度更高.
- 衰老会影响肌球蛋白的含量和颜色,其变化受到pHu的影响.
- 尽管有感官差异,但消费者对中等质量牛肉和正常质量牛肉的接受程度相似.
- 调查结果为牛肉质量管理和消费者对该行业的看法提供了洞察力.
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