ABSTRACTAccuracy and suitability of various wavelengths employing reflectance spectrophotometry for measuring K/S ratios or RA values, was critically analysed for the estimation of fresh mutton color. The K/S ratio method using wavelengths 572 and 525 nm gave more consistent results than other wavelengths. The lower myoglobin content of mutton as compared to that of beef was, however, responsible for narrower ranges obtained for differentiation of fresh and oxidized mutton color. The commercial acceptability limit for fresh mutton color was 0.09 units less than the initial value of K/S 572/525 ratio.
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