Two hundred and nine beef carcasses (361 ± 53 kg) from crossbred, grain-finished cattle harvested in a commercial packing plant and evaluated for marbling score, core temperature (n=1), pH, shrinkage, color, and aerobic plate count (n=50) for 24, 48, 72, and 96 h under spray chilling. There were minimal changes in shrinkage among time points (-0.4 to 1.2%; P ≤ 0.002), pH (5.56 to 5.69; P ≤ 0.001), and APC (0.1 to 0.7 log; P ˂ 0.001). Marbling score values were converted to numeric values of 200 (Practically Devoid00) to 1100 (Abundant00). Carcasses with SM or greater marbling score at 24 h had a 34 to 60 points deduction after 96 h of spray chilling (P ≤ 0.042), the SL carcasses had an increase marbling score, from 442 to 469 points. Moreover, SL carcasses had a greater percentage of PUFA (P < 0.001).

京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第20427号 / 農博第2212号 / 新制||農||1048(附属図書館) / 学位論文||H29||N5048(農学部図書室) / 京都大学大学院農学研究科応用生物科学専攻 / (主査)准教授 谷口 幸雄, 教授 今井 裕, 教授 廣岡 博之 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DFAM