期刊
JOURNAL OF FOOD ENGINEERING
卷 118, 期 4, 页码 393-399出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2013.04.028
关键词
Intermittent drying; Carrot; Colour; Water activity; Retention of beta-carotene
资金
- Poznan University of Technology [32-127/13 DS-BP]
This paper presents the results of studies concerning the quality of food materials like vegetables subjected to convective drying in non-stationary conditions. The effect of different frequencies and amplitudes of the periodically changeable drying air temperature on the quality of dried carrot (Daucus carota L.) has been investigated. The indicators of the quality such as the color change, the water activity and the retention of beta-carotene were analyzed. The slices of carrot root were used as the material for experimental tests. It has been shown that the non-stationary drying carried out in a prescribed variable air temperature significantly minimized the unfavorable effects in color changes, beta-carotene degradation, and decay phenomena. (C) 2013 Elsevier Ltd. All rights reserved.
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