American Journal of Applied Sciences

Experimental Comparisons of Anchovy Drying using Centrifugal and Gravitational Fluidized Bed Techniques

Watcharin Dongbang and Rungtawan Wiwattanasirikul

DOI : 10.3844/ajassp.2015.72.79

American Journal of Applied Sciences

Volume 12, Issue 2

Pages 72-79

Abstract

The present study investigated experimental comparisons of anchovy drying using centrifugal and gravitational fluidized bed techniques; in addition, drying models and thermal efficiency were also investigated. In the first stage, fresh anchovy was dried with solar energy to reduce the initial moisture content from 81±1%wb to around 65%±1wb. In the second stage, the anchovy was dried with a dryer from 65±1%wb to around 10%±1wb. The drying air flow rates for drying with the centrifugal fluidized bed dryer and gravitational fluidized bed dryer were fixed at 0.27±0.01 and 0.12±0.01-1 respectively. The hot air temperatures for drying were in the range 60-80°C. Drying times for anchovy with the centrifugal fluidized bed dryer and gravitational fluidized bed dryer were 86-153 and 79-135 min. respectively. The increase in drying temperature is a significant factor in decreasing the moisture and darkness of dried anchovy. The quality of the dried anchovy is acceptable. The Page’s drying model is the best model based on the highest value of R2 and the lowest value of RMSE.

Copyright

© 2015 Watcharin Dongbang and Rungtawan Wiwattanasirikul. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.