Goodson K J, Morgan W W, Reagan J O, Gwartney B L, Courington S M, Wise J W, Savell J W
Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station 77843-2471, USA.
J Anim Sci. 2002 Feb;80(2):401-8. doi: 10.2527/2002.802401x.
An in-home beef study evaluated consumer ratings of clod steaks (n = 1,264) as influenced by USDA quality grade (Top Choice, Low Choice, High Select, and Low Select), city (Chicago and Philadelphia), consumer segment (Beef Loyals, who are heavy consumers of beef; Budget Rotators, who are cost-driven and split meat consumption between beef and chicken; and Variety Rotators, who have higher incomes and education and split their meat consumption among beef, poultry, and other foods), degree of doneness, and cooking method. Consumers evaluated each steak for Overall Like, Tenderness, Juiciness, Flavor Like, and Flavor Amount using 10-point scales. Grilling was the predominant cooking method used, and steaks were cooked to medium-well and greater degrees of doneness. Interactions existed involving the consumer-controlled factors of degree of doneness and(or) cooking method for all consumer-evaluated traits for the clod steak (P < 0.05). USDA grade did not affect any consumer evaluation traits or Warner-Bratzler shear force values (P > 0.05). One significant main effect, segment (P = 0.006), and one significant interaction, cooking method x city (P = 0.0407), existed for Overall Like ratings. Consumers in the Beef Loyals segment rated clod steaks higher in Overall Like than the other segments. Consumers in Chicago tended to give more uniform Overall Like ratings to clod steaks cooked by various methods; however, consumers in Philadelphia gave among the highest ratings to clod steaks that were fried and among the lowest to those that were grilled. Additionally, although clod steaks that were fried were given generally high ratings by consumers in Philadelphia, consumers in Chicago rated clod steaks cooked in this manner significantly lower than those in Philadelphia. Conversely, consumers in Chicago rated clod steaks that were grilled significantly higher than consumers in Philadelphia. Correlation and stepwise regression analyses indicated that Flavor Like was driving customer satisfaction of the clod steak. Flavor Like was the sensory trait most highly correlated to Overall Like, followed by Tenderness, Flavor Amount, and Juiciness. Flavor Like was the first variable to enter into the stepwise regression equation for predicting Overall Like, followed by Tenderness and Flavor Amount. For the clod steak, it is likely that preparation techniques that improve flavor without reducing tenderness positively affect customer satisfaction.
一项家庭牛肉研究评估了牛肩肉牛排(n = 1264)的消费者评分,该评分受美国农业部质量等级(顶级精选、低等级精选、高等级选择和低等级选择)、城市(芝加哥和费城)、消费者细分群体(牛肉忠实者,即牛肉的大量消费者;预算轮换者,即受成本驱动且在牛肉和鸡肉之间分配肉类消费的人群;以及品种轮换者,即收入和教育水平较高且在牛肉、家禽和其他食物之间分配肉类消费的人群)、熟度和烹饪方法的影响。消费者使用10分制对每块牛排的总体喜爱程度、嫩度、多汁性、风味喜爱程度和风味浓郁度进行评估。烧烤是主要使用的烹饪方法,牛排被烤至中等偏熟及更高的熟度。对于牛肩肉牛排的所有消费者评估特性,熟度和(或)烹饪方法这两个消费者可控因素之间存在相互作用(P < 0.05)。美国农业部等级并未影响任何消费者评估特性或沃纳 - 布拉茨勒剪切力值(P > 0.05)。对于总体喜爱评分,存在一个显著的主效应,即细分群体(P = 0.006),以及一个显著的相互作用,即烹饪方法×城市(P = 0.0407)。牛肉忠实者细分群体的消费者对牛肩肉牛排的总体喜爱评分高于其他细分群体。芝加哥的消费者对通过各种方法烹制的牛肩肉牛排往往给出更一致的总体喜爱评分;然而,费城的消费者对油炸牛肩肉牛排给出的评分最高,对烤牛肩肉牛排给出的评分最低。此外,尽管费城的消费者对油炸牛肩肉牛排普遍给予高分,但芝加哥的消费者对以这种方式烹制的牛肩肉牛排的评分显著低于费城的消费者。相反,芝加哥的消费者对烤牛肩肉牛排的评分显著高于费城的消费者。相关性和逐步回归分析表明,风味喜爱程度是推动牛肩肉牛排客户满意度的因素。风味喜爱程度是与总体喜爱程度相关性最高的感官特性,其次是嫩度、风味浓郁度和多汁性。风味喜爱程度是进入预测总体喜爱程度的逐步回归方程的第一个变量,其次是嫩度和风味浓郁度。对于牛肩肉牛排,改善风味而不降低嫩度的制备技术可能会对客户满意度产生积极影响。