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Study on the Drying Characteristics and Physicochemical Properties of Alfalfa under High-Voltage Discharge Plasma

Author

Listed:
  • Wenhao Hu

    (College of Science, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Zhiqing Song

    (College of Electric Power, Inner Mongolia University of Technology, Hohhot 010080, China)

  • Qingjie Ma

    (College of Science, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Bufan Li

    (College of Science, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Mingjie Zhang

    (College of Electric Power, Inner Mongolia University of Technology, Hohhot 010080, China)

  • Changjiang Ding

    (College of Electric Power, Inner Mongolia University of Technology, Hohhot 010080, China)

  • Hao Chen

    (College of Science, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Shenghou Zhao

    (Branch of Tumote Left Banner, Ecological Environment Bureau of Hohhot, Hohhot 010100, China)

Abstract

High-voltage discharge plasma drying (HVDPD) is a non-thermal and efficient drying technique. In this study, we compared the drying characteristics and physicochemical properties of alfalfa dried via HVDPD, hot-air drying (HAD), and natural air-drying (AD) and analyzed the experimental results using infrared spectroscopy, scanning electron microscopy, colorimetry, and other detection techniques. The results showed that HVDPD had a higher drying rate than AD and saved more energy than HAD. Alfalfa dried via HVDPD had the most intact internal structure, the highest rehydration ratio (RR), the best color quality, and the best nutrient retention, resulting in the highest relative quality and feeding value. Therefore, HVDPD is an excellent drying technique for alfalfa, providing a new and effective way to improve the storage, transportation, and drying quality of alfalfa.

Suggested Citation

  • Wenhao Hu & Zhiqing Song & Qingjie Ma & Bufan Li & Mingjie Zhang & Changjiang Ding & Hao Chen & Shenghou Zhao, 2024. "Study on the Drying Characteristics and Physicochemical Properties of Alfalfa under High-Voltage Discharge Plasma," Agriculture, MDPI, vol. 14(7), pages 1-18, July.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:7:p:1134-:d:1434315
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