This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Guevara-Sánchez et al. Rev. Fac. Agron. (LUZ). 2022, 39(3): e2239367-7 |
In tables 4 and 6, it is observed that the cupping value of samples
dried with the IR system was different from the traditional system
(P<0.05), so it is inferred that with the electromechanical prototype a
greater effectiveness in sensory quality of coffee was obtained. Similar
results were reported in different studies, in which the highest cupping
values were obtained through articial drying, using drying tunnels
based on heated air (Tesfa et al., 2021), by far infrared convection
(Chunshan et al., 2016; Lao et al., 2019), and by mechanical drying
(Guevara-Sánchez et al., 2019).
Conclusions
The built electromechanical drying system works safely. The
function tests, temperature and heat transfer tests of the heating unit, as
well as the correct displacement of the external emitters in its bearing
structure were successful. Humidity, temperature and positioning
sensors have been installed by specialists in instrumentation,
connectivity and programming.
The results indicate that the infrared-based electromechanical
system increased the sensory quality of the coffee compared to
traditional drying, since the sensory quality of the beans at the
evaluated altitudes was higher. Likewise, the values of the applied
tasting and statistical tests showed that the sensory quality obtained
is due to the type of drying used that preserves the attributes of the
coffee. Determining that electromechanical drying is an efcient and
effective alternative for the drying processing of coffee beans for the
agricultural sector, which seeks to ensure the appropriate organoleptic
characteristics for the commercialization of specialty coffees.
Acnowledgements
To the Programa Nacional de Desarrollo Tecnológico e Innovación
- ProInnóvate for the nancing of the project "Incremento de la
calidad en taza para cafés especiales con la aplicación y validación de
un sistema electro-mecánico de secado, con tecnología de infrarrojos
lejanos (IR) en Aproselvanor, Provincia Moyobamba - Región San
Martín", Contract No. 293-INNOVATEPERU-PIEC1-2019.
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