Convective Drying Kinetics and Quality Parameters of European Cranberrybush


Taskin O. , Izli G., İZLİ N.

JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI, vol.24, no.3, pp.349-358, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.15832/ankutbd.456654
  • Title of Journal : JOURNAL OF AGRICULTURAL SCIENCES-TARIM BILIMLERI DERGISI
  • Page Numbers: pp.349-358
  • Keywords: European cranberrybush, Drying characteristics, Colorimetric parameters, Total phenolic content, Antioxidant capacity, VIBURNUM-OPULUS-L., TOTAL PHENOLIC CONTENT, HOT-AIR, PHYSICOCHEMICAL PROPERTIES, ANTIOXIDANT CAPACITY, REHYDRATION CHARACTERISTICS, DEGRADATION KINETICS, MOISTURE DIFFUSIVITY, BETA-CAROTENE, RED-PEPPER

Abstract

In this research, the effects of convective drying (60, 70, 80 and 90 degrees C) techniques on the drying kinetics, color, antioxidant capacity and total phenolic content of European cranberrybush were investigated in detail. To choose the best thin-layer drying models for the drying treatments, 10 mathematical models were compared for the experimental data. Depending on the evaluation by statistical tests, the Midilli et al model was determined to be the best suitable model to explain the drying behavior of European cranberrybush samples. All of the colorimetric parameters were influenced by drying temperatures. Antioxidant capacity and total phenolic content values of European cranberrybush samples displayed a significant reduction at low-temperature levels (60 and 70 degrees C) with regard to those at high-temperature levels (80 and 90 degrees C). In addition, the correlation analysis between antioxidant capacity and total phenolic content exhibited a high degree of correlation (R-2 = 0.8656).