干燥方式对香芋条干燥特性及品质的影响
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1.大连工业大学食品学院,辽宁 大连 116034;2.贺州市农村技术发展中心,广西 贺州 542899;3.贺州学院广西康养食品科学与技术重点实验室,广西 贺州 542899;4.河南科技大学食品与生物工程学院,河南 洛阳 471000

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任爱清(1984—),男,贺州学院教授,博士。E-mail:258032771@qq.com

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国家自然科学基金地区基金项目(编号:32160573);广西重点研发计划项目(编号:桂科AB23049007);河南洛阳市科技计划项目(编号:2302021A)


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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    摘要:

    目的 减少采收香芋腐烂变质,提高香芋干燥品质。方法 分析了真空微波干燥(VMD)、热风干燥(HAD)、热泵干燥(HPD)、远红外辐射干燥(FIRD)4种干燥方式对香芋条干燥特性、物理特性(复水率、硬度、色差)、水分迁移和分布情况及微观结构的影响。结果 香芋干燥效率方面,VMD的自由水脱除时间最短,HAD和HPD的次之;色泽方面,L*值大小顺序为HAD>HPD>FIRD>VMD;硬度方面,VMD>FIRD>HPD>HAD;复水率方面,FIRD>HPD>HAD>VMD。微观结构显示,VMD和HAD香芋条表面收缩明显,结构更致密;FIRD和HPD香芋条表面结构较疏松,孔道较多。结论 HAD香芋条品质更佳。

    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,2025,41(9):196-202.
LI Xiaoyun, XIE Ronghua, CHEN Sheng, et al. Effects of different drying methods on drying characteristics and quality of taro strips[J]. Food & Machinery,2025,41(9):196-202.

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  • 收稿日期:2027-11-07
  • 最后修改日期:2025-07-01
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  • 在线发布日期: 2025-10-28
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