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International Journal of Food Science
Volume 2016, Article ID 7879097, 5 pages
http://dx.doi.org/10.1155/2016/7879097
Research Article

Drying Characteristics and Physical and Nutritional Properties of Shrimp Meat as Affected by Different Traditional Drying Techniques

1Council for Scientific and Industrial Research-Food Research Institute, P.O. Box M 2O, Accra, Ghana
2Graduate School of Nuclear and Allied Sciences, University of Ghana, P.O. Box LG 80, Legon, Ghana

Received 5 November 2015; Accepted 18 February 2016

Academic Editor: Fabienne Remize

Copyright © 2016 P. T. Akonor et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The influence of different drying methods on physical and nutritional properties of shrimp meat was investigated in this study. Peeled shrimps were dried separately using an air-oven dryer and a tunnel solar dryer. The drying profile of shrimp meat was determined in the two drying systems by monitoring moisture loss over the drying period. Changes in color, proximate composition, and rehydration capacity were assessed. The rate of moisture removal during solar drying was faster than the air-oven drying. The development of red color during drying was comparable among the two methods, but solar-dried shrimps appeared darker () than the air-oven-dried (). Chemical analysis indicated that protein and fat made up nearly 20% and 2% (wb) of the shrimp meat, respectively. Protein and ash content of shrimp meat dried under the two dryer types were comparable but fat was significantly () higher in oven-dried meat (2.1%), compared to solar-dried meat (1.5%). Although rehydration behavior of shrimp from the two drying systems followed a similar pattern, solar-dried shrimp absorbed moisture more rapidly. The results have demonstrated that different approaches to drying may affect the physical and nutritional quality of shrimp meat differently.