Journal
MEAT SCIENCE
Volume 90, Issue 2, Pages 478-484Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2011.09.011
Keywords
Lamb; Meat; Colour stability; Retail display; Oxy/met
Categories
Funding
- Meat and Livestock Australia
- Food Processing Equipment
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An experiment was conducted to compare the effect of two chilling rates (Con and Fast) on colour change of lamb meat during simulated retail display. Measurements were made on 3 muscles; LD (m. longisimuss dorsi). SM (m semimembranosus) and ST (m. semitendinous). Meat samples from 32 Merino crossbred lambs were vacuum packed and stored for 5 days at 2 degrees C. then cut and overwrapped in polyvinyl chloride film on black polystyrene trays, stored in a display cabinet at 4 degrees C with lights on and measured twice daily for 4 days, using a Hunterlab minilab 45/20 L D65, aperture 10 degrees. Sarcomere length was shorter, shear force higher and colour change greater in meat from the Fast treatment compared to the Con treatment. Colour differences between treatments were likely due to oxygenation (bloom) as well as oxidation effects. Chill rate is important when characterising colour change during display and should be considered in measurement protocols. (C) 2011 Elsevier Ltd. All rights reserved.
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