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Study on drying efficiency, uniformity, and physicochemical characteristics of carrot by tunnel microwave drying combined with explosion puffing drying

文献类型: 外文期刊

作者: Xu, Yayuan 1 ; Lang, Xumin 1 ; Xiao, Yadong 1 ; Li, Dajing 1 ; Liu, Chunquan 1 ; Song, Jiangfeng 1 ; Zhang, Zhongyuan; 1 ;

作者机构: 1.Jiangsu Acad Agr Sci, Inst Farm Prod Proc, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangnan Univ, State Key Lab Food Sci & Technol, Wuxi, Jiangsu, Peoples R China

3.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang, Jiangsu, Peoples R China

关键词: Carrot; tunnel microwave drying; explosion puffing drying; drying efficiency; physicochemical characteristics

期刊名称:DRYING TECHNOLOGY ( 影响因子:4.452; 五年影响因子:4.034 )

ISSN: 0737-3937

年卷期:

页码:

收录情况: SCI

摘要: Tunnel microwave drying (TMD) is commonly applied in industrial production of dried products. In this study, carrot slices were processed by a combined method of explosion puffing drying (EPD) and TMD (TMD-EPD). The drying characteristics and efficiency during TMD pre-drying with different conveyor speeds were studied. Additionally, product quality including color, carotenoids, ascorbic acid, texture, microstructure, rehydration, and shrinkage ratio were evaluated compared to that of hot air drying (HAD) pre-drying and HAD-EPD. The results showed that a lower conveyor speed (0.65 cm/s) could improve the drying uniformity to some extent. A higher conveyor speed (1.30 cm/s) of TMD-EPD led to better texture attributes, higher rehydration capacity and less shrinkage in diameter compared to HAD-EPD. The microstructure of TMD-EPD samples was more expanded and porous than that of HAD-EPD. Furthermore, TMD could reduce the time of pre-drying process and subsequent EPD process in comparison with HAD-EPD.

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