Association between meat color of DFD beef and other quality attributes
Muawuz Ijaz1, Xin Li1, Dequan Zhang1
1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, No. 1 Nongda South Road, Xi Beiwang, Haidian District, Beijing 100193, PR China.
Abstract:
This study investigated the association between DFD beef color and other quality traits and explained the possible mechanisms. Beef longissimus thoracis (LT) was assessed and classified into one of three groups based on the pH 24 h post-mortem: normal (pH ≤ 5.70), atypical DFD (5.70 < pH ≤ 6.09) and typical DFD (pH > 6.09) beef and stored at 4 °C for 7 days. Typical DFD beef showed the lowest glycolytic potential, L*, a*, b*, chroma and oxymyoglobin accompanied with the highest water-holding capacity, hue angle and deoxymyoglobin values on day 1 of storage. Glycolytic potential was positively correlated with chroma, R630/580 and oxymyoglobin but was negatively correlated with pH and hue angle. Water-holding capacity was directly related to deoxymyoglobin levels. Atypical DFD beef showed a higher shear force value that was positively associated with metmyoglobin levels. In conclusion, DFD beef color was not only affected by ultimate pH but also related to shear force, glycolytic potential and water-holding capacity.
More Related Videos
Related Concept Videos
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Protein Folding Quality Check in the RER
Changes in Skin Color: Clinical Perspectives
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Classification of Skeletal Muscle Fibers
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Pedigree Analysis
Goodness-of-Fit Test


