Journal
CIENCIA E AGROTECNOLOGIA
Volume 27, Issue 6, Pages 1268-1276Publisher
UNIV FEDERAL LAVRAS-UFLA
DOI: 10.1590/S1413-70542003000600010
Keywords
Coffee; storage; quality; color; Coffea arabica
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The main objective of this work was to determine the influence of the storage period and the type of pre-processing on the color of green coffee (Coffea arabica L.). The assay design was entirely randomized, with treatments arranged in a factorial scheme with four storage periods (0, 4, 8 and 12 months) and two types of pre-processing (natural and washed coffee), with two repetitions. The color of the coffee grains was determined by direct reading of reflectance of coordinates L, a and b in a tristimulus colorimeter, with the Hunter color system. It was concluded that the storage process, in atmosphere conditions, reduced the intensity of the green and blue colors of the coffee grains, with the increase of storage time, independently of the type of pre-processing employed and that the washing pre-processing presented the smaller effect on the color loss during the first eight months of storage.
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