Centro de Investigación y Tecnología Agroalimentaria de Aragón-IA2, Zaragoza, Spain.
Departamento de Producción Animal y Ciencia de los Alimentos, Universidad de Zaragoza, Zaragoza, Spain.
J Texture Stud. 2018 Oct;49(5):528-535. doi: 10.1111/jtxs.12350. Epub 2018 Jul 22.
In the current study the collagen, texture, and sensory characteristics of meat from 712 yearling males of 10 local Spanish and French beef breeds raised in their typical production systems were described. The breed-production system affected collagen and texture variables but affected sensory variables only slightly. There was a large amount of intra breed-production system variation for all the variables. French breeds had lower values for collagen solubility (12%) than Spanish breeds (40%). Stress (WB) varied from 36 N/cm in Casina to 44 N/cm in Salers, whereas compression stress at 80% ranged from 35 N/cm in Asturiana de los Valles to 40 N/cm in Salers. Oven cooking resulted in higher cooking losses (24%) than cooking on a grill (12%). Cooking losses increased as the grill temperature increased. Numerous significant correlations were found among variables. Carcass weight is associated with all the collagen and texture variables. Correlation coefficients among texture and collagen variables were statistically significant and these correlation coefficients were in general higher for solubility percentage than for total collagen content, highlighting the importance of the solubility of collagen rather than total collagen in determining meat textural properties.
To differentiate a product in the market, it is necessary to define its characteristics. Differentiation allows increasing the added value of products and, therefore, income of the farmers. In addition, it guarantees to the consumers that the product they purchase has the intrinsic and extrinsic quality features that they seek. For consumers, beef texture is one of the most important quality attributes sought, therefore, studying factors that can affect beef texture is a major interest for the industry.
本研究描述了来自 712 头 10 个当地西班牙和法国肉牛品种的育肥小牛的肉的胶原、质地和感官特性,这些牛在其典型的生产系统中饲养。品种-生产系统影响胶原和质地变量,但仅对感官变量有轻微影响。所有变量在品种-生产系统内都有大量的变异。法国品种的胶原蛋白溶解度(约 12%)低于西班牙品种(约 40%)。应激(WB)从卡西亚纳的 36 N/cm 变化到萨勒的 44 N/cm,而 80%压缩应力从阿斯图里亚纳德洛斯瓦莱斯的 35 N/cm 变化到萨勒的 40 N/cm。烤箱烹饪导致的烹饪损失(24%)高于烧烤(12%)。随着烧烤温度的升高,烹饪损失增加。在变量之间发现了许多显著的相关性。胴体重与所有胶原和质地变量相关。质地和胶原变量之间的相关系数具有统计学意义,且在溶解度百分比方面的相关性系数通常高于总胶原含量,这突出了胶原溶解度而不是总胶原含量在决定肉的质地特性方面的重要性。
为了在市场上区分产品,有必要定义其特性。差异化可以提高产品的附加值,从而增加农民的收入。此外,它可以保证消费者购买的产品具有他们所寻求的内在和外在质量特征。对于消费者来说,牛肉的质地是他们所寻求的最重要的质量属性之一,因此,研究可能影响牛肉质地的因素是行业的主要关注点。