IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjf/v40y2022i2id188-2021-cjfs.html
   My bibliography  Save this article

Extrusion process of maize grits used for nixtamalization

Author

Listed:
  • Kristýna Olšaníková

    (Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Czech Republic)

  • Evžen Šárka
  • Petra Smrčková

    (Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Czech Republic)

Abstract

The aim of the paper was to seek optimum conditions of extrusion cooking and follow-up processing to produce high-quality tortillas with good sensory properties. Sixteen samples of maize flour were prepared by extrusion with and without alkaline treatment. The extrudate diameters depended primarily on the moisture content of the premix and the temperature in the extruder. Alkaline treatment with calcium hydroxide [Ca(OH)2] had a strong effect on water absorption index (WAI), water solubility index (WSI), pH, and colour of the extrudates. Besides, WAI was influenced by the moisture of the premix and by the temperature in the second zone of the extruder. Soluble dietary fibre (SDF) in the samples with the addition of Ca(OH)2 increased more than in the samples without alkaline treatment. In addition, a higher screw speed influenced SDF. The texture of the tortillas was very dependent on the addition of Ca(OH)2, on the moisture of the premix and the temperature in the second zone of the extruder.

Suggested Citation

  • Kristýna Olšaníková & Evžen Šárka & Petra Smrčková, 2022. "Extrusion process of maize grits used for nixtamalization," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 40(2), pages 138-146.
    • Handle: RePEc:caa:jnlcjf:v:40:y:2022:i:2:id:188-2021-cjfs
    DOI: 10.17221/188/2021-CJFS
    as

    Download full text from publisher

    File URL: http://cjfs.agriculturejournals.cz/doi/10.17221/188/2021-CJFS.html
    Download Restriction: free of charge
    File URL: http://cjfs.agriculturejournals.cz/doi/10.17221/188/2021-CJFS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/188/2021-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:40:y:2022:i:2:id:188-2021-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.