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Drying of Fruits Pieces in Fixed and Spouted Bed

  • Odelsia Leonor Sanchez de AlsinaEmail author
  • Marcello Maia de Almeida
  • José Maria da Silva
  • Luciano Fernandes Monteiro
Chapter
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Part of the Advanced Structured Materials book series (STRUCTMAT, volume 48)

Abstract

Fruit culture is one of the most diversified and important agro industrial activities in Brazil. As long as the fruit production increases and exportation grows, it is necessary to reduce losses along the production chain. Spouted and fluidized bed driers, due the high rates of mass and heat transfer, could be an alternative in order to improve the product quality. This work is concerned with drying of fruits in cone-cylindrical spouted bed, using guava pieces as a case study. Fluid dynamic studies in spouted bed and fluidized bed indicate the feasibility of using this technique for drying pieces of fruits. The diffusional model proved to be satisfactory to describe the kinetics of drying in spouted and fluidized bed. The performance of the spouted bed dryer was analyzed based on final moisture content, the loss of vitamin C and rehydration capability. It was found that, in a general way, the combined fixed bed/spouted bed process presented good performance.

Keywords

Spouted bed Fluidized bed Kinetics of drying Moisture content Fruit 

Notes

Acknowledgments

The authors would like to acknowledge CNPq, National Scientific and Technologic Development Council of Brazil for the scholarships and financial support.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Odelsia Leonor Sanchez de Alsina
    • 1
    Email author
  • Marcello Maia de Almeida
    • 2
  • José Maria da Silva
    • 3
  • Luciano Fernandes Monteiro
    • 4
  1. 1.Institute of Technology and ResearchTiradentes UniversityAracajuBrazil
  2. 2.State University of ParaibaCampina GrandeBrazil
  3. 3.Federal University of Campina GrandeCampina GrandeBrazil
  4. 4.Federal University of SergipeSão CristóvãoBrazil

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