Naslov
Parsley root drying - comparison of two different methods

Autori
Velić, Darko ; Bilić, Mate ; Tomas, Srećko ; Planinić, Mirela ; Bucić, Ana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 33. International Symposium on Agricultural Engineering / Košutić, Silvio - Zagreb : Zavod za mehanizaciju poljoprivrede Agronomskog fakulteta Sveučilišta u Zagrebu, 2005, 551-562

Skup
Actual Tasks on Agricurtural Engineering

Mjesto i datum
Opatija, Hrvatska, 21.02.2005. - 25.02.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Parsley root; Infrared drying; Fluidized bed drier; Rehydration ratio; Color changes; Volume changes

Sažetak
The aim of the experiment was to examine the influence of two different drying methods and different drying temperatures on the drying kinetics of parsley root. The methods examined were: infrared drying (IR) and drying in fluidized bed drier (FBD). The parsley root was dried at temperatures of 60, 65 and 70 °C. The sample measures were 20x20x5 mm. The mass of the samples was constantly monitored during the drying process. On the basis of the results a comparison has been made in order to determine the better drying method and all the process parameters that contribute to the maximum quality of dried product. The main goal of the drying was to get a dried parsley root with approximately 7% water content, good rehydration capability and color stability. The effect of different methods and temperatures of drying on the quality of dried parsley root was evaluated using overall color change (Δ E), change of volume and rehydration ratio. The exponential mathematical model was used for approximation of experimental data for both methods of drying. The model has exhibit good correspondence with experimental data for both methods of drying.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA