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Document Type

Thesis - University Access Only

Award Date

2015

Degree Name

Master of Science (MS)

Department

Animal Science

First Advisor

Stacy Scramlin-Zueller

Abstract

The objective of this study was to determine if a relationship between objective color, pH, and water-holding capacity (WHC) exists. Minolta color (L*, a*, b*) and pH were measured on beef strip loin steaks (n=427). Steaks were aged for various time periods and evaluated for purge loss, cook loss, Warner-Bratzler shear force (WBSF), end-point temperature, crude fat and moisture analysis. Several individual color and pH measurements showed significant correlations to moisture content, purge loss, and cook loss. A step-wise regression determined variables effective for predicting moisture content, purge loss, and cook loss. To evaluate sensory juiciness, a subset (n=101) was selected using the prediction equations determined for moisture content and cook loss. The subset samples were then analyzed with a step-wise regression to predict sensory juiciness. Moisture content was able to be predicted with a*, b*, and marbling score (R2 = 0.6808; P

Library of Congress Subject Headings

Beef--Quality

Description

Includes bibliographical references (pages 30-43)

Format

application/pdf

Number of Pages

59

Publisher

South Dakota State University

Rights

In Copyright - Educational Use Permitted
http://rightsstatements.org/vocab/InC-EDU/1.0/

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