Antinutritional factors of the hull and dehydrated pulp of coffee (Coffea arabica L.) stored in different periods
The caffeine, tannins, lignin and silica contents of the hull and pulp of coffee cultivar Catuai, Rubi, Mundo Novo were evaluated. Pulp was obtained by moist pulping in a mechanical pulper and dried in the sun adjusted to 13 percent moisture. Materials were stored in raffia bags in an environment free of moisture and ventilated with samplings every 90 d. The quadratic effect shown increased caffeine content at 360 d storage, this increase was 11.7 percent in 12 months. Tannin content was reduced linearly along with storage. The values of tannin were 2.77 percent compared to the 1.70 percent of the unstored materials wherein the reduction was of 38.6 percent in 1 year. Lignin contents were reduced linearly at 2.6 percent in DM (11.7 to 11.4 percent) and 5.8 percent in NDF (10.4 to 9.8 percent) in unstored materials as compared to 12 months of storage. There was a significant difference between the hull and pulp for the variable silica. Increased value of silica in the hull, compared to the pulp may be due to the presence of parchment in this material, since thispulp does not possess it. The storage of hull and pulp for a 12 month period improved the qualities of these materials since it reduced tannin and lignin contents. The values of caffeine found were limiting in the use of great amounts of those materials for ruminants.
| Main Authors: | , , , , |
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| Format: | biblioteca |
| Published: |
2001
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| Subjects: | COFFEA ARABICA, CAFE, RUMIANTE, FACTORES ANTINUTRICIONALES, CAFEINA, PULPA DE CAFE, CASCARAS, LIGNINAS, HUMEDAD, ELABORACION DE PULPA, SILICE, ALMACENAMIENTO, TANINOS, |
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