IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjf/v33y2015i3id611-2014-cjfs.html
   My bibliography  Save this article

Details of the antioxidant mechanism of hydroxycinnamic acids

Author

Listed:
  • Ya-Jing SHANG

    (School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, P.R. China)

  • Bao-Yong LIU

    (School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, P.R. China)

  • Meng-Meng ZHAO

    (School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, P.R. China)

Abstract

Antioxidant activities and free radical-mediated DNA strand breakages of five hydroxycinnamic acids were examined. Kinetic analysis of a stable galvinoxy (GO*)-scavenging reaction of hydroxycinnamic acids demonstrated that the molecular structure and the reaction medium were two important factors affecting the antioxidant mechanism and activity. In methanol, the kinetic process of the compounds, which have electron-donating groups (-OH, -OCH3) in the ortho- or para-position of 4-OH, was primarily governed by the sequential proton loss electron transfer (SPLET mechanism). While, in ethyl acetate, the reaction mechanism is predominantly direct hydrogen atom transfer (HAT mechanism). But for the compounds having only one hydroxyl, both in ethyl acetate and methanol, the reaction mechanism is only HAT. At the same time, the compound bearing o-diphenoxyl is not the most active one in our tested environment.

Suggested Citation

  • Ya-Jing SHANG & Bao-Yong LIU & Meng-Meng ZHAO, 2015. "Details of the antioxidant mechanism of hydroxycinnamic acids," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 33(3), pages 210-216.
    • Handle: RePEc:caa:jnlcjf:v:33:y:2015:i:3:id:611-2014-cjfs
    DOI: 10.17221/611/2014-CJFS
    as

    Download full text from publisher

    File URL: http://cjfs.agriculturejournals.cz/doi/10.17221/611/2014-CJFS.html
    Download Restriction: free of charge
    File URL: http://cjfs.agriculturejournals.cz/doi/10.17221/611/2014-CJFS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/611/2014-CJFS?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.

    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:jnlcjf:v:33:y:2015:i:3:id:611-2014-cjfs. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.