Sun Drying of Cornelian Cherry Fruits (Cornus mas L.)

Yıl 2017, Cilt: 10 Sayı: 1, 68 - 77, 28.06.2017

Ayşe Vildan Beşe , Bilgehan Polatoğlu

Öz

In this study, the sun drying behavior of cornelian cherry fruits was investigated. The drying rate curve of cornelian
cherry was shown that the drying process took place in the falling rate period.
Twelve thin-layer mathematical models were used for explaining the thin
layer drying kinetics of cornelian cherry. 
The approximation of diffusion model was found to
be the most appropriate model for the process. 
The Fick’s diffusion model was used to calculate the effective moisture
diffusion coefficients (D_eff)
of cornelian cherry. The value of D_eff
was obtained as 1.20x10^-11
m²/s. The vitamin C degradation of dried
cornelian cherry was determined as about 51.1%.

Anahtar Kelimeler

: Cornelian cherry, Drying kinetics, Modeling, Effective diffusivity, Vitamin C

Sun Drying of Cornelian Cherry Fruits (Cornus mas L.)

Öz

Bu
çalışmada, kızılcık meyvesinin güneşte kuruma davranışı incelenmiştir.
Kızılcığın kuruma hız eğrisi, kuruma işleminin azalan hız periyodunda
gerçekleştiğini göstermiştir. Kızılcığın ince tabaka kuruma davranışını
açıklamak için on iki ince tabaka matematik modeli kullanılmıştır. Difüzyon
yaklaşım modelinin işlem için en uygun model olduğu belirlenmiştir.  Kızılcığın etkin nem difüzyon katsayısını (D_eff) hesaplamak için Fick’in
difüzyon modeli kullanılmıştır. D_eff
’in değeri 1.20x10^-11 m²/s olarak
hesaplanmıştır. Kurutulan kızılcığın C vitamin bozulması yaklaşık % 51.1 olarak
belirlenmiştir. 

Anahtar Kelimeler

Kızılcık, Kuruma kinetiği, Modelleme, Etkin yayılma, C vitamini

Kaynakça

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