Effects of different drying methods on drying characteristics and quality of taro strips
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1.School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, China;2.Hezhou Rural Development Center, Hezhou, Guangxi 542899, China;3.Guangxi Key Laboratory of Health Care Food Science and Technology, Hezhou University, Hezhou, Guangxi 542899, China;4.College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000, China

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    Abstract:

    Objective To reduce postharvest spoilage of taro and improve the drying quality of taro strips.Methods Four drying methods, i.e., vacuum microwave drying (VMD), hot air drying (HAD), heat pump drying (HPD), and far-infrared radiation drying (FIRD), were used to analyze their effects on the drying characteristics, physical properties (rehydration ratio, hardness, and color difference), moisture migration and distribution, and microstructure of taro strips.Results In terms of drying efficiency, VMD demonstrated the shortest free water removal time, followed by HAD and HPD. For color performance, the L* value followed the order HAD>HPD>FIRD>VMD. In terms of hardness, the order was VMD>FIRD>HPD>HAD, while for rehydration ratio, the sequence was FIRD>HPD>HAD>VMD. Microstructural analysis showed that VMD- and HAD-treated taro strips exhibited significant surface shrinkage and denser structures, while FIRD- and HPD-treated samples showed looser surface structures with more porous channels.Conclusion HAD-treated taro strips demonstrated superior overall quality.

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李晓云,谢荣华,陈胜,等.干燥方式对香芋条干燥特性及品质的影响[J].食品与机械英文版,2025,41(9):196-202.

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History
  • Received:November 07,2027
  • Revised:July 01,2025
  • Adopted:
  • Online: October 28,2025
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