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Determination of Water-holding Capacity of Porcine Musculature Based on ReleasedWater Method Using Optimal Load

机译:基于释放的猪肌肉组织保水能力的测定最佳负荷的水法

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摘要

The purpose of this study was to evaluate the suitability of the released water (RW) method for measuring water-holding capacity (WHC) by pressure and filter-paper absorption within two thin plastic films. One hundred fifty pork loins with considerable variations in WHC (three pork qualities: PSE, pale, soft, and exudative; RFN, reddish-pink, firm, and nonexudative; and DFD, dark, firm, and dry; 50 pork loins in each pork quality group) were used to measure drip loss (DL)% and RW % after applying different loads (1.5, 2.0, 2.5, 3.0 and 3.5 kg). Percentages of DL and RW were significantly (p<0.05) different among pork quality groups. The RW % of 2.5 kg load sample was significantly (p<0.05) higher than that of 2.0 kg or 1.5 kg load sample. However, there were no significant (p>0.05) differences in RW % among 2.5 kg, 3.0 kg, and 3.5 kg load samples for all three pork quality groups. The RW % was highly and positively correlated (r>0.95; p<0.001) with DL %. The highest correlation was observed between DL % and RW % of 2.5 kg load sample (r=0.97; p<0.001). Among all RW loads within each quality groups, the highest correlation between DL % and RW % was observed for 2.5 kg load sample (r=0.43, 0.66, and 0.46 for PSE, RFN and DFD quality groups, respectively, p<0.001). These results imply that applying 2.5 kg load is the best for determination of RW %. It is recommended as a reference method to assess DL % of pork muscles.
机译:这项研究的目的是评估通过两种塑料薄膜内的压力和滤纸吸收来测量持水量(WHC)的释水(RW)方法的适用性。 150种猪腰肉,其中WHC差异很大(三种猪肉品质:PSE,淡,软和渗出物; RFN,红粉红色,坚硬和非渗出物;以及DFD,黑,坚硬和干燥;每种中有50个猪腰猪肉品质组)在施加不同的负载量(1.5、2.0、2.5、3.0和3.5千克)后用于测量滴漏率(DL)%和RW%。猪肉品质组之间的DL和RW百分比显着不同(p <0.05)。 2.5 kg负载样品的RW%显着(p <0.05)高于2.0 kg或1.5 kg负载样品的RW%。但是,所有三个猪肉质量组的2.5千克,3.0千克和3.5千克负荷样品之间的RW%没有显着差异(p> 0.05)。 RW%与DL%高度正相关(r> 0.95; p <0.001)。在2.5 kg负载样品的DL%和RW%之间观察到最高的相关性(r = 0.97; p <0.001)。在每个质量组内的所有RW载荷中,对于2.5 kg载荷样品,观察到DL%和RW%之间的相关性最高(PSE,RFN和DFD质量组的r分别为0.43、0.66和0.46,p <0.001)。这些结果表明,施加2.5 kg的负载是确定RW%的最佳方法。建议将其作为评估猪肌肉DL%的参考方法。

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