Kaić Ana, Janječić Zlatko, Golub Karla, Potočnik Klemen
Department of Animal Science and Technology, University of Zagreb Faculty of Agriculture, Svetošimunska Cesta 25, 10000 Zagreb, Croatia.
Department of Animal Nutrition, University of Zagreb Faculty of Agriculture, Svetošimunska Cesta 25, 10000 Zagreb, Croatia.
Animals (Basel). 2023 Mar 14;13(6):1054. doi: 10.3390/ani13061054.
The EZ-DripLoss method is relatively new gravimetric method that is used for the determination of excessive drip in meat. The literature reports diversity regarding the use of EZ-DripLoss methodology. In the standardized EZ-DripLoss method, drip loss is calculated as the change in the container weight, whereas in the modified EZ-DripLoss method, it is calculated as the change in sample weight. This technical note aimed to research the relationship between these two methods on chicken breast meat (40 broilers from the line Ross 308) during the measurement interval of 24, 48, and 72 h. The results showed statistically a significant positive linear increase in drip loss values regardless of the used method during all of the investigated measurement intervals. At 24, 48, and 72 h of storage, the average drip loss in the weighed samples was 0.77, 1.40, and 2.23 percentage points greater than in the not weighed samples ( < 0.0001), respectively. A strong and positive estimate of correlation coefficients between the drip loss of weighed and not weighed samples was found after 24 h (r = 0.95), 48 h (r = 0.92), and 72 h (r = 0.86). This technical report indicates that the used EZ-DripLoss methodology highly influences the drip loss in chicken breast meat and the comparisons of the EZ-DripLoss results should be performed with great caution.
EZ-滴水损失法是一种相对较新的重量法,用于测定肉类中的过度滴水损失。关于EZ-滴水损失法的使用,文献报道存在差异。在标准化的EZ-滴水损失法中,滴水损失是根据容器重量的变化来计算的,而在改良的EZ-滴水损失法中,它是根据样品重量的变化来计算的。本技术说明旨在研究这两种方法在测量24、48和72小时期间对鸡胸肉(来自罗斯308品系的40只肉鸡)的滴水损失的影响。结果表明,在所有研究的测量间隔内,无论使用哪种方法,滴水损失值在统计学上均呈显著的正线性增加。在储存24、48和72小时时,称重样品的平均滴水损失分别比未称重样品高0.77、1.40和2.23个百分点(<0.0001)。在24小时(r = 0.95)、48小时(r = 0.92)和72小时(r = 0.86)后,发现称重样品和未称重样品的滴水损失之间存在强正相关系数估计。本技术报告表明,所使用的EZ-滴水损失法对鸡胸肉的滴水损失有很大影响,因此在比较EZ-滴水损失结果时应格外谨慎。