masterThesis
Obtenção e caracterização de farinha de frutas e vegetais através do uso de um sistema de secagem solar de baixo custo
Fecha
2010-08-27Registro en:
COSTA, João Batista Sousa. Obtenção e caracterização de farinha de frutas e vegetais através do uso de um sistema de secagem solar de baixo custo. 2010. 72 f. Dissertação (Mestrado em Tecnologia de Materiais; Projetos Mecânicos; Termociências) - Universidade Federal do Rio Grande do Norte, Natal, 2010.
Autor
Costa, João Batista Sousa
Resumen
In this work a solar drying system for food dehydration was developed. It is a
direct exposition drying apparatus that uses solar energy to heat the circulating air. First,
the construction and assembly of this apparatus was described, in which was used scrap
wraps of used tires for thermal insulation, allowing the reuse of solid waste, being an
ecologically correct recycling option. After, the results obtained in experiments for
cashew drying showed the thermal and economical feasibility of the proposed solar
drying system, focusing on the process of flour production and in its chemical
characterization. It was also demonstrated the social importance of this production for
socially excluded people, since the value added to this fruit, in relation to its in nature
form, may represent an option for job and income generation. The main features of the
proposed dryer are its low cost and its easy fabrication and assembly process. After
cashew drying, the obtained product was processed into flour by using a knife mill and
it was added crushed rapadura to reduce the rancid taste caused by tannin