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J Food Sci Technol. 2014 May;51(5):970-5. doi: 10.1007/s13197-011-0557-z. Epub 2011 Oct 22.

Colour, myoglobin denaturation and storage stability of raw and cooked mutton chops at different end point cooking temperature.

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1
National Research Centre on Meat, Chengicherla, P.B.Bo.19, Uppal P.O., Hyderabad, 500 039 India.

Abstract

In our study effect of different end point temperature (51 °C, 65 °C, 71 °C and 79 °C) on physicochemical and storage stability of mutton chops were evaluated. The L* (lightness) value and b* (yellowness) increased (P < 0.05) in cooked mutton chops than the raw mutton. The a* value (redness) decreased (P < 0.05) as end point temperature increased. As internal cooking temperature increased soluble myoglobin content decreased with a corresponding increase in percent myoglobin denatured. Raw mutton chops (uncooked) had lower level of oxidation (less TBA values) than cooked mutton irrespective of storage length. Initial APC of raw and cooked mutton chops ranged from log 1.75 to log 3.73 and was lower in higher end point cooking temperature. It can be concluded that as end point temperature increased, mutton chops appear less red and raw mutton had lower level of oxidation than cooked mutton chops.

KEYWORDS:

Colour; Cooking; Mutton; Myoglobin; Storage

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