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RELATIONSHIPS OF SPECTROPHOTOMETRIC REFLECTANCE MEASUREMENTS TO BEEF MUSCLE VISUAL COLOR
Author(s) -
HARRISON A. R.,
KROPF D. H.,
ALLEN D. M.,
HUNT M. C.,
KASTNER C. L.
Publication year - 1980
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1980.tb07510.x
Subject(s) - reflectivity , analytical chemistry (journal) , chemistry , white light , zoology , materials science , mathematics , optics , biology , chromatography , physics , optoelectronics
Unadjusted percentage reflectance ratios or differences at 630 nm/580 nm, 507 nm/572 nm, 572 nm/525 nm, 630 nm — 580 nm and K/S adjustment of 572 nm/525 nm and 507 nm/572 nm showed high pooled within‐cell correlation coefficients to visual color scores of beef muscles displayed under 1076 lumens/m 2 Deluxe Warm White lighting at 2°C up to 5 days. Adjusting reflectance to K/S did not improve correlation coefficients. Multiple regression analysis showed that %R 630 nm —%R 580 nm contributed most to R 2 of prediction equations in three of four beef muscles studied. Use of %R 630 nm —%R 580 nm is recommended.