Abstract
SUMMARY— Colored fractions ware extracted and concentrated from peel of most commercial orange varieties and used to enhance the color of orange juice products. These included Pineapple, Hamlin, Parson Brown, Valencia, blood orange and Dancy tangerine. The relative yields of crude pigment per kg of peel were compared between he different varieties. The color extracts were analyzed for tristimulus yellowness (Y) and redness (RI factors. Crude pigment yields ranged from .34 g (Hamlin) to 1.29 g (Dancy tangerine) per kg of peel. R factors were highest for Dancy tangerine, followed by Pineapple orange and Valencia, and lowest for Hamlin. Y factors were highest for Dancy tangerine, followed by Valencia and Pineapple and lowest for Hamlin. Most color extracts were effective at a dilution of 113500 parts in improving the color of orange juice products.
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