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Composition of the beef wholesale rib
D M Wulf1, J R Romans, W J Costello
1Department of Animal and Range Sciences, South Dakota State University, Brookings 57007-0392.
Journal of Animal Science
|January 1, 1994
Summary
Beef rib composition varies more by anatomical location than USDA yield grade. Removing lip from ribeyes significantly reduces fat content, potentially increasing consumer appeal.
Area of Science:
- Meat Science
- Animal Science
- Food Composition
Background:
- Understanding beef rib composition is crucial for accurate grading and consumer satisfaction.
- Previous research has focused on yield grades, but anatomical location's impact on fat content needs further exploration.
Purpose of the Study:
- To determine the compositional differences in wholesale beef ribs from anterior to posterior ends.
- To compare tissue amount variations within wholesale ribs versus variations between different USDA yield grades.
- To assess the impact of lip removal on the separable fat content of ribeyes.
Main Methods:
- Dissection of 40 wholesale beef ribs to analyze tissue composition along the anterior-posterior axis.
- Comparison of compositional data across different anatomical locations within ribs.
- Evaluation of differences between ribs from various USDA yield grades.
Main Results:
- Significant variations in tissue amounts were observed based on anatomical location within the wholesale rib.
- Differences in tissue amounts within a rib were greater than differences between ribs of varying USDA yield grades.
- Kernel fat was most abundant in the 7th, 8th, and 9th rib bone sections.
- Removal of the lip from IMPS 112A reduced ribeye separable fat content by approximately 46%.
Conclusions:
- Anatomical location is a more significant determinant of beef rib composition than USDA yield grade.
- The 7th-9th rib sections exhibit higher kernel fat content.
- Reducing lip fat through trimming can substantially decrease ribeye fat content, potentially enhancing consumer appeal.