ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Moderately pigmented yolks were diluted with pigment-free yolks to provide a wide range of samples with which to compare standard beta carotene equivalents with excitation purity and luminous reflectance values obtained with a reflectance calorimeter. Pigmented yolks were also mixed with a white diluent for reflectance colorimetric comparisons. Correlation coefficients of beta carotene equivalents with excitation purity and luminous reflectance values were +0.906 and −0.874, respectively. The regression line for luminous reflectance was linear and for excitation purity was curvilinear. The white diluent (1:l ratio) resulted in significant reduction of the tendency of excitation purity to plateau for deeply pigmented yolks.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1974.tb02935.x
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