IDEAS home Printed from https://ideas.repec.org/a/caa/jnlrae/v49y2003i2id4952-rae.html
   My bibliography  Save this article

Approximation of bruise spot volume in pears in plots against deformation parameters

Author

Listed:
  • J. Blahovec

    (Czech University of Agriculture, Prague, Czech Republic)

  • V. Mareš

    (Czech University of Agriculture, Prague, Czech Republic)

Abstract

Pears of different varieties were compressed between two flat rigid plates in loading/unloading tests. The bruise spots appearing after room temperature incubation were analysed manually, and bruise spot volumes were determined. The main parts of the paper discuss mathematical approximation of total bruise volume versus two deformation parameters defined in previous papers: hysteresis losses and degree of elasticity. The polynomial of the second order was used for this purpose, but success of this method depends on including some part of not-bruising results in the analysis. Characteristic values of hysteresis losses and degree of elasticity were used to determine the bruise index, the integral parameter, that is suitable for classifying the tested varieties as to tissue susceptibility to low-level bruising. The variety susceptibility to bruising decreased in the following order: Elektra, Erika, Vonka, Lucasova, Dicolor, Dita, Omega, Jana, Lada, Astra, Bohemica, and Delta.

Suggested Citation

  • J. Blahovec & V. Mareš, 2003. "Approximation of bruise spot volume in pears in plots against deformation parameters," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 49(2), pages 50-55.
    • Handle: RePEc:caa:jnlrae:v:49:y:2003:i:2:id:4952-rae
    DOI: 10.17221/4952-RAE
    as

    Download full text from publisher

    File URL: http://rae.agriculturejournals.cz/doi/10.17221/4952-RAE.html
    Download Restriction: free of charge
    File URL: http://rae.agriculturejournals.cz/doi/10.17221/4952-RAE.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/4952-RAE?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Schoorl, D. & Holt, J. E., 1986. "Post-harvest energy transformations in horticultural produce," Agricultural Systems, Elsevier, vol. 19(2), pages 127-140.
    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:caa:jnlrae:v:49:y:2003:i:2:id:4952-rae. 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: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

      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.