Agricultural Research Centre-Ghent, Department of Animal Nutrition and Husbandry, Scheldeweg 68, B-9090 Melle-Gontrode, Belgium.
Meat Sci. 1999 Apr;51(4):313-20. doi: 10.1016/s0309-1740(98)00123-5.
The extent to which water holding capacity (WHC) techniques: filter paper press method, drip loss and filter paper method, are related to the sensory juiciness appreciation of pork was studied. Additionally four on-line methods: pH1, FOP1 (light scattering), PQM1 (conductivity) and DDLT (Double Density Light Transmission), were evaluated for their ability to predict WHC and juiciness scores. One-hundred and twenty samples of m. longissimus thoracis et lumborum, from animals of different genotypes, were involved in this study. Only WHC results, determined by the filter paper press method, were significantly correlated with juiciness scores (r=-0.24). The results of the filter paper method, either by weighing or visual judging, could not be predicted by the on-line methods. The results of the filter paper press method (F.p.p.-RZ) and drip loss were slightly better correlated with DDLT (respectively, r=0.56 and 0.45) than with PQM1 (r=0.51 and 0.36), FOP1 (r=0.48 and 0.34) and pH1 (r=0.41 and 0.34), although the standard error of estimate of the linear regressions was similar for the four on-line methods. Unfortunately, the on-line techniques incorrectly predicted several WHCs. Juiciness was slightly or not related to the on-line methods. The DDLT technique, which is analogous to the CGM (Capteur Gras/Maigre), an officially accepted carcass grading apparatus in France and Belgium, is as good or better than the classical on-line instruments: pH, FOP and PQM, in predicting WHC.
研究了持水力（WHC）技术：滤纸压榨法、滴水损失和滤纸法与猪肉感官多汁性评价的相关性。此外，还评估了四种在线方法：pH1、FOP1（光散射）、PQM1（电导率）和 DDLT（双密度光传输），以评估它们预测 WHC 和多汁性评分的能力。本研究涉及来自不同基因型动物的 120 个 m. longissimus thoracis et lumborum 样本。只有滤纸压榨法测定的持水力结果与多汁性评分呈显著相关（r=-0.24）。滤纸法的结果（无论是称重还是目视判断）都不能通过在线方法预测。滤纸压榨法（F.p.p.-RZ）和滴水损失与 DDLT 的相关性略好于与 PQM1（分别为 r=0.56 和 0.45）、FOP1（r=0.48 和 0.34）和 pH1（r=0.41 和 0.34），尽管四个在线方法的线性回归估计标准误差相似。不幸的是，在线技术错误地预测了几个 WHC。多汁性与在线方法几乎没有关系或没有关系。DDLT 技术与 CGM（Capteur Gras/Maigre）类似，CGM 是法国和比利时官方认可的胴体分级设备，与经典的在线仪器 pH、FOP 和 PQM 相比，在预测 WHC 方面同样出色或更好。
