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Title: Development and Quality Analysis of a Direct Solar Dryer for Fish
Authors: Obayopo, Surajudeen O.
Alonge, Oluwasanmi I.
Keywords: Solar Dryer
Moisture Content
Drying Rate
Drying Efficiency
Issue Date: 17-May-2018
Publisher: Scientific Research Publishing
Citation: Obayopo, S.O. and Alonge, O.I. (2018) Development and Quality Analysis of a Direct Solar Dryer for Fish. Food and Nutrition Sciences , 9, 474-488.
Abstract: The study investigates drying characteristics of common species of fish in the tropics, catfish (Clarias gariepinus ) and tilapia fish (Oreochromis niloticus ) using a direct solar dryer. The drying process was carried out during the dry and wet season under natural (0 m/s) and forced convective drying (1.5 m/s, 2.5 m/s, 3.5 m/s fan speed). Results obtained showed that the drying air attained by the dryer was satisfactory and the maximum temperature difference between the dryer and the ambient temperatures was 35˚C. The moisture content of the dried samples was 13.97% for catfish and 13.35% for tilapia fish during dry season and during the wet season it was 15.68% for catfish and 14.9% for tilapia fish while for the open sun dried samples it was 21.7% for catfish and 17.0% for tilapia fish. Maximum drying efficiency of 74.3% was recorded for the dryer during dry season and the dried samples at 3.5 m/s fan speed were better in drying rates. The proximate compositions of the fish before and after drying were determined. There was significant difference in proximate composition before and after drying (P < 0.05) and no significant difference in proximate composition at fan speeds considered for both fish species (P < 0.05).
ISSN: 2157-9458
Appears in Collections:Research Articles

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