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The effects of the addition of baker's yeast on the functional properties and quality of tarhana, a traditional fermented food

Author

Listed:
  • Ilyas Çelik

    (Food Engineering Department, Engineering Faculty, Pamukkale University, Camlik, Denizli, Turkey)

  • Fatma ISIK

    (Food Engineering Department, Engineering Faculty, Pamukkale University, Camlik, Denizli, Turkey)

  • Omer Simsek

    (Food Engineering Department, Engineering Faculty, Pamukkale University, Camlik, Denizli, Turkey)

  • Oguz Gursoy

    (Food Engineering Department, Engineering Faculty, Pamukkale University, Camlik, Denizli, Turkey
    Department of Dairy Technology, Faculty of Agriculture, Ege University, Bornova, Izmir, Turkey)

Abstract

As a fermented product, tarhana is the dry form of yogurt-cereal mixture and represents an important part of the diets of many people in different countries including Turkey. In the present study, the effects of the addition of baker's yeast on the quality and functional properties of tarhana were investigated. Tarhana was produced under laboratory conditions (uncontrolled and controlled conditions) using two formulas. Some physicochemical, functional, and sensory properties of the samples were analysed. An increase was found in the acidity value of all samples during the fermentation period. The addition of baker's yeast affected the functional properties (water absorption capacity, foaming capacity, foaming stability, emulsifying activity) of the samples (P< 0.05). The tarhana samples produced by the addition of yeast and under controlled conditions had shorter fermentation times and better sensory properties. This research suggests that the addition of baker's yeast and the employment of controlled conditions can be recommended in the production of the commercial type of tarhana.

Suggested Citation

  • Ilyas Çelik & Fatma ISIK & Omer Simsek & Oguz Gursoy, 2005. "The effects of the addition of baker's yeast on the functional properties and quality of tarhana, a traditional fermented food," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 23(5), pages 190-195.
    • Handle: RePEc:caa:jnlcjf:v:23:y:2005:i:5:id:3390-cjfs
    DOI: 10.17221/3390-CJFS
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    Keywords

    soup; fermentation; tarhana; yeast; flour;
    All these keywords.

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