- Tytuł:
- Influence of preliminary osmotic dehydration on drying kinetics and final quality of carrot (Daucus Carota L.)
- Autorzy:
-
Kowalski, S. J.
Mierzwa, D. - Powiązania:
- https://bibliotekanauki.pl/articles/185002.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
jakość produktu
kinetyka suszenia
suszenie konwektywne
osmotic dehydration
convective drying
carrot
drying kinetics
product quality - Opis:
- This paper concerns convective drying of carrot preliminary dehydrated in aqueous solutions of three types of osmotic agents (sucrose, fructose, glucose). Three solution concentrations (20, 40 and 60%) were examined to work out efficient conditions of osmotic dewatering. The parameters such as water loss (WL), solid gain (SG) and osmotic drying rate (ODR) indicating the real efficiency of osmotic dehydrations (OD) were determined. The samples dehydrated with osmotic solutions underwent further convective drying to analyze influence of dehydration process on drying kinetics and final products quality. The quality of products was assessed on the basis of visual appearance of the samples and colorimetric measurements. It was found that osmotic pretreatment improves significantly the final product quality as the samples were less deformed and their colour was better preserved compared to samples, which had not been preliminarily dehydrated. Preliminary dehydration, however, did not influence significantly the overall drying time of the samples.
- Źródło:
-
Chemical and Process Engineering; 2011, 32, 3; 185-194
0208-6425
2300-1925 - Pojawia się w:
- Chemical and Process Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł