Removal of kidney fat before chilling--effect on beef tenderloin yield, color and tenderness



Journal Title

Journal ISSN

Volume Title


American Society of Animal Science


Sixteen beef carcass sides were either conventionally dressed or stripped of kidney and pelvic fat before being chilled. After 3 d of chilling at 0 to 4 C, the tenderloins were removed and trimmed of external fat and psoas minor and iliacus muscles. The psoas major muscles were then vacuum packaged and stored 3 more days at 0 to 2 C. Two steaks were then cut 20 cm from the posterior end of each muscle. One steak was subjectively evaluated for color during a 4-d display period (polyvinyl chloride film) at 0 C; the other was used for Warner-Bratzler shear force evaluation. Shear force steaks were frozen until evaluated. No differences (P>.05) in chilled or aged weight, drip loss during aging or thawing and cooking losses were observed between treatments. The conventionally treated beef was lighter colored at d 0 (P<.01) and 1 (P<.05) of display, but no differences (P>.05) between treatments were detected at d 2 and 4. Color change analysis from d 0 through 4 showed less (P<.01) color change for the tenderloins with fat removed. Shear force means were higher (P<.01) for steaks from sides from which the kidney fat was removed before chilling (2.49 kg) than for those treated conventionally (2.26 kg).



Food science, Beef tenderloin, Kidney fat, Color, Tenderness, Yield