title: Development of solar drying model for selected Cambodian fish species.
abstract: A solar drying was investigated as one of perspective techniques for fish processing in Cambodia. The solar drying was compared to conventional drying in electric oven. Five typical Cambodian fish species were selected for this study. Mean solar drying temperature and drying air relative humidity were 55.6 °C and 19.9%, respectively. The overall solar dryer efficiency was 12.37%, which is typical for natural convection solar dryers. An average evaporative capacity of solar dryer was 0.049 kg · h(-1). Based on coefficient of determination (R(2)), chi-square (χ(2)) test, and root-mean-square error (RMSE), the most suitable models describing natural convection solar drying kinetics were Logarithmic model, Diffusion approximate model, and Two-term model for climbing perch and Nile tilapia, swamp eel and walking catfish and Channa fish, respectively. In case of electric oven drying, the Modified Page 1 model shows the best results for all investigated fish species except Channa fish where the two-term model is the best one. Sensory evaluation shows that most preferable fish is climbing perch, followed by Nile tilapia and walking catfish. This study brings new knowledge about drying kinetics of fresh water fish species in Cambodia and confirms the solar drying as acceptable technology for fish processing.
authors.affiliation: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 16521 Praha 6, Czech Republic.
authors.forename: Anna
authors.initials: A
authors.lastname: Hubackova
authors.affiliation: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 16521 Praha 6, Czech Republic.
authors.forename: Iva
authors.initials: I
authors.lastname: Kucerova
authors.affiliation: Department of Food Biotechnology, Faculty of Agro-Industry, Royal University of Agriculture, P.O. Box 2696, Khan Dangkor, Phnom Penh, Cambodia.
authors.forename: Rithy
authors.initials: R
authors.lastname: Chrun
authors.affiliation: Department of Economics and Development, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 16521 Praha 6, Czech Republic.
authors.forename: Petra
authors.initials: P
authors.lastname: Chaloupkova
authors.affiliation: Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 16521 Praha 6, Czech Republic.
authors.forename: Jan
authors.initials: J
authors.lastname: Banout
mesh_terms: D000818:Animals; D002160:Cambodia; D003890:Desiccation / Q000295:instrumentation / Q000379:methods*; D005399:Fishes; D005511:Food Handling / Q000295:instrumentation / Q000379:methods*; D008962:Models, Theoretical; D012993:Solar Energy