Análisis y modelamiento de la granulometría en la cáscara del café (Coffea arabica L.) variedad Castillo
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Date
2015-07
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction. Coffee´s peel is the main sub product
of coffee industry in Colombia and is not sufficiently
used to exploit its bioactive potential, represented
by its carotenoids, gallic acid, anthocyanins and
antioxidants, all of them with great value for food and
pharmaceutical industries. It is, therefore, important to
study its granulometry in order to develop extraction
processes. Objective. Analyze and make a model of
coffee´s peel granulometry (Coffea arabica L.), Castillo
variety. materials and methods. The raw material
used in this research work was coffee peel (Coffea
arabica L.), Castillo variety, acquired in farms from the
Antioquian South West region. The coffee plants had
an average of ten years of age and the selection was
made in the 2015 harvest. The drying and the adequacy
of the raw material took place in one of the farms,
in Caldas, Antioquia, Colombia. The granulometry
analysis by sieving was performed at Corporación
Universitaria Lasallista´s laboratories. A cutter mill
was used and a grinding time lapse between 1 and 4
minutes was assessed. The particles distribution was
studied with the Gates-Gaudin-Schuhmann (G-G-S)
and Rosin-Rammler (R-R) models. Both models were
linearized in order to obtain the equation constants
and the correlation coefficients to be compared.
Results. The Rosin-Rammler´s distribution function
is the one that best represents the granulometric
distribution of coffee peel, with a r2 equal to 0,99
in contrast to the distribution function of GatesGaudin-Schuhmann, with a lower r2 that decreases as
grinding time increases.
Description
Keywords
Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Café, Café - Subproductos, Granulometría