共查询到18条相似文献,搜索用时 62 毫秒
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影响牦牛肉保水性能的因素及其嫩度的研究 总被引:11,自引:0,他引:11
在新鲜牦牛肉中添加不同比例的持水剂(复合磷酸盐),用加热离心法测定牦牛肉的持水力值,采用正交试验,得出复合磷酸盐的比值为2:2:1(三聚磷酸钠:焦磷酸钠:六偏磷酸钠),添加量为0.4%时,牦牛肉保水性能和嫩度最佳。 相似文献
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牦牛肉在加工过程中嫩化技术的研究 总被引:4,自引:0,他引:4
随着人民生活水平的提高,人们对肉的需求量越来越大,对肉的质量要求也越来越高。肉的食用质量指标主要包括滋味、质地、多汁性和气味等,其中以代表质地品质的嫩度最为重要。影响肉嫩度的因素包括肉来源动物的种类、品种、年龄、性别等外在因素以及肌节长度、组织蛋白酶活性、肉的pH值、肌纤维类型等内在因素等。一般情况下,在加工牦牛肉过程中,人们无法改变影响嫩度的外在因素,只能试图改变内在因素。现将用菠萝蛋白酶、复合磷酸盐、钙盐等处理牦牛肉,研究其保水性、pH值和嫩度的变化规律。1材料与方法1.1材料及设备屠宰5h以后的新鲜牦牛肉… 相似文献
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Brooks JC Belew JB Griffin DB Gwartney BL Hale DS Henning WR Johnson DD Morgan JB Parrish FC Reagan JO Savell JW 《Journal of animal science》2000,78(7):1852-1860
Fifty-six retail stores representing 15 retail chains and 14 foodservice facilities in eight U.S. cities were sampled to determine the tenderness of beef steaks at retail and foodservice levels based on Warner-Bratzler shear (WBS) values and consumer evaluation panels. Retail consumer panels were conducted at five universities. Each retail and foodservice steak was evaluated using 10-point scales. Steaks were divided into the following quality groups for statistical analysis: Prime, Top Choice, Choice, Select, and Lean or No Roll. Quality group had no effect on WBS values of retail clod, chuck roll, top round, bottom round, eye of round, top loin, top sirloin, or ribeye steaks but did (P < .05) affect values for the T-bone/porterhouse. The percentages of retail top round, eye of round, and bottom round steaks with a WBS force > 3.9 kg were 39.6, 55.9, and 68.0, respectively. Foodservice ribeye, top loin, and top sirloin steaks had WBS values less than 3.4 kg for all quality groups, with Prime ribeye steaks having lower (P < .05) WBS values than ribeyes from the other quality groups. With the exception of the retail ribeye steak, quality group did not affect consumer sensory ratings of retail and foodservice steaks. Average postfabrication aging times were 32 d for foodservice subprimals and 19 d for retail cut subprimals. These data indicate that improvements in the tenderness of retail cuts from the round are needed. Finally, quality group had little or no effect on consumer sensory evaluations and WBS values of retail and foodservice steaks used in this study. 相似文献
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嫩度是影响猪肉品质的重要性状之一,肉品的嫩度取决于肌肉结构及其相关蛋白质的变化程度。影响肌肉嫩度的因素有很多,其中钙蛋白酶系统在肌肉嫩化过程中发挥着重要作用。钙蛋白酶抑制蛋白是钙蛋白酶系统的成员之一,同时也为钙蛋白酶抑制蛋白基因的表达产物,钙蛋白酶抑制蛋白基因为调控猪肉品质的候选基因之一。作者对影响肌肉嫩度的因素、钙蛋白酶系统的结构和生理功能,以及钙蛋白酶系统和钙蛋白酶抑制蛋白基因型对猪肉嫩度的影响进行综述。 相似文献