title: Caffeine reduction in coffee pulp through silage.
abstract: Silage tests to study reductions of antiphysiological compounds (caffeine and polyphenols) of fresh coffee pulp during the anaerobic fermentation were done. A concrete silo divided in compartments, with a total capacity of 9 tons of fresh material was utilized. The silage periods ranged between 99-224 days and the following materials were ensiled: 1) coffee pulp, 2) coffee pulp with sugar cane molasses, 3) coffee pulp with a mixture of molasses and ammonia and 4) screw pressed coffee pulp with molasses. Reductions in caffeine, total polyphenols and condensed polyphenols ranged between 13-63%, 28-70% and 51-81% respectively. It was concluded that in the case of coffee pulp, silage presents and ideal method to preserve the material and partially reduce the contents of antiphysiological compounds.
authors.affiliation: Central American Research Institute for Industry (ICAITI), Guatemala City, Guatemala.
authors.forename: C
authors.initials: C
authors.lastname: Porres
authors.forename: D
authors.initials: D
authors.lastname: Alvarez
authors.forename: J
authors.initials: J
authors.lastname: Calzada