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Drying Characteristic of Hawthorn Fruits in a Convective Hot Air Dryer      
Yazarlar
Doç. Dr. Hüseyin Güran ÜNAL Doç. Dr. Hüseyin Güran ÜNAL
Kastamonu Üniversitesi, Türkiye
Kamil Saçılık
Ankara Üniversitesi, Türkiye
Özet
In this study, the drying characteristics of hawthorn fruits were examined in a laboratory scale hot-air dryer at an air velocity of 0.8m/s and air temperature in the range of 50-70C. Moisture transfer from the test samples was described by applying the Fick's diffusion model, and the effective diffusivity was calculated. The temperature dependence of the effective diffusivity was described by the Arrhenius-type relationship. The experimental drying data of hawthorn fruits were used to fit Page, Logarithmic, Approximation of diffusion, Two-term and Midilli etal. models, and the statistical validity of models tested were determined by nonlinear regression analysis. Estimations by the Midilli etal. model were in good agreement with the experimental data obtained. PRACTICAL APPLICATIONS: Hawthorn fruit is known as a medicinal plant throughout the world. For hawthorn extract and powder products, drying is necessary. This work evaluates the drying conditions and presents a mathematical model for hot-air drying of hawthorn fruits. With these results, drying of hawthorn can be carried out in industrial convective dryers. © 2010 Wiley Periodicals, Inc.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF FOOD PROCESSING AND PRESERVATION
Dergi ISSN 0145-8892
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 04-2011
Cilt No 35
Sayı 2
Sayfalar 272 / 279
Doi Numarası 10.1111/j.1745-4549.2009.00451.x