IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v12y2022i6p783-d827239.html
   My bibliography  Save this article

Dielectric Properties of Hydrothermally Modified Potato, Corn, and Rice Starch

Author

Listed:
  • Chong You Beh

    (Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia)

  • Ee Meng Cheng

    (Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia
    Advanced Communication Engineering, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Kangar 01000, Malaysia)

  • Nashrul Fazli Mohd Nasir

    (Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia
    Sports Engineering Research Centre (SERC), Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia)

  • Mohd Shukry Abdul Majid

    (Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia)

  • Shing Fhan Khor

    (Faculty of Electrical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia)

  • Mohd Ridzuan Mohd Jamir

    (Faculty of Mechanical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia)

  • Emma Ziezie Mohd Tarmizi

    (Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Kim Yee Lee

    (Lee Kong Chian Faculty of Engineering & Science, Sungai Long Campus, Tunku Abdul Rahman University, Jalan Sungai Long, Kajang, Cheras, Sungai Long City 43000, Malaysia)

Abstract

The effect of starch granule sizes, shapes, composition, and frequency on the dielectric properties (dielectric constant, loss factor, and conductivity) of native and hydrothermally modified starches (potato, corn, and rice starch) are investigated in this work. Dielectric properties are determined from 5 Hz to 5 GHz. The modified starches exhibit lower dielectric properties than the native starches from 5 Hz to 5 GHz due to the disruption of the native polysaccharide’s molecular arrangement. The modified potato starch shows the highest loss factor (208.12 at 50 Hz and 19.95 at 500 Hz) and stable conductivity (~5.33 × 10 −7 S/m at 50 Hz and 500 Hz) due to the larger continuous network structure after hydrothermal modification. The rice starch shows the largest difference in dielectric constant (47.30%) and loss factor (71.42%) between the modified form and native form in the frequency range of 5 MHz–5 GHz. This is due to the restriction of dipole motions in the closely packed structure after hydrothermal modification. The findings indicate that the quality of starch modification can be characterized by dielectric properties for assisting starch-based plastic production’s design.

Suggested Citation

  • Chong You Beh & Ee Meng Cheng & Nashrul Fazli Mohd Nasir & Mohd Shukry Abdul Majid & Shing Fhan Khor & Mohd Ridzuan Mohd Jamir & Emma Ziezie Mohd Tarmizi & Kim Yee Lee, 2022. "Dielectric Properties of Hydrothermally Modified Potato, Corn, and Rice Starch," Agriculture, MDPI, vol. 12(6), pages 1-14, May.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:6:p:783-:d:827239
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/12/6/783/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/12/6/783/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jingchen Wang & Eng Gee Lim & Mark Paul Leach & Zhao Wang & Ka Lok Man, 2020. "Open-Ended Coaxial Cable Selection for Measurement of Liquid Dielectric Properties via the Reflection Method," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-8, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:12:y:2022:i:6:p:783-:d:827239. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.