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Research Article Open access CC BY 4.0

Microbiological Quality and Sensory Properties of Tarhanas Produced by Addition Saccharomyces cerevisiae and Sourdough as Starter Culture after Different Fermentation Periods

Fatma Coskun

Asian Food Science Journal · pp. 1–8 · Published 15 Dec 2018

10.9734/AFSJ/2019/45492

Abstract

Aims: The aim of this study was to investigate some effects of different starter cultures (Saccharomyces cerevisiae and sourdough) and different fermentation times (7, 14 and 21 days) on tarhana. Place and Duration of Study: Food Engineering Department, Namık Kemal University, Tekirdag, Turkey,  October 2017. Methodology: Wheat flour, full-fat commercial set-type yoghurt made from cow milk, starter culture (sourdough and dried baker’s yeast as Saccharomyces cerevisiae), fresh red pepper, onion, tomato, dill, parsley, dry mint, table salt and ground black pepper were used as materials. Tarhana doughs prepared using these materials were fermented for 7, 14 and 21 days. Physicochemical and microbiological analyses of tarhana samples were performed using standard methods. Tarhana soups were evaluated by panelists in terms of sensory properties at the end of the 21st day. Results: pH values of baker's yeast added samples were lower than the others and their acidity were higher than the others during the fermentation period. Dry matter of samples increased with the prolongation of fermentation time. The dry matter of the sample produced using baker's yeast was slightly higher than that of the other sample at day 21. Total mesophilic aerobic bacteria and lactic acid bacteria (mesophilic rod) counts of tarhana samples with sourdough were always higher than the others during the fermentation. Yeast-mould counts of tarhana samples with baker’s yeast decreased slightly during the fermentation period, but were higher than the others. The coliform group bacteria was not detected on the 7th day of fermentation. Samples were left to fermentation for 7 and 14 days were less favoured than those were left to fermentation for 21 days. On the 21st day of fermentation, the sample added dry baker’s yeast was the most favoured sample. Conclusion: As a result of the sensory analysis, considering the total score, although the difference between them is slight, baker's yeast added tarhana soups were more favoured than the others. Also, with the prolongation of the fermentation period, in terms of sensory properties, tarhanas were more favoured and microbiologically safer tarhanas were obtained.

Tarhana cereal-based traditional fermented product kishk kushuk trahanas

References (7)

  1. 1 Identification of lactic acid bacteria isolated from Tarhana, a traditional Turkish fermented food [DOI]
  2. 2 Tarhana as a traditional Turkish fermented cereal food. Its recipe, production and composition [DOI]
  3. 3 Effects of fermentation and storage on the organic and fatty acid contents of tarhana, a Turkish fermented cereal food [DOI]
  4. 4 Evolution of fermenting microbiota in tarhana produced under controlled technological conditions [DOI]
  5. 5 Traditional Turkish Fermented Cereal Based Products: Tarhana, Boza and Chickpea Bread [DOI]
  6. 6 Effects of fermentation time and storage on the water‐soluble vitamin contents of tarhana [DOI]
  7. 7 Comparison of microbiological and chemical properties of home and plant-type Ușak tarhana dough during fermentation.

Cited by 1

Beyond a single recipe: A review of Turkish tarhana's biocultural diversity, terroir, and rebirth as a functional food

Armin Amanpour · International Journal of Gastronomy and Food Science · 2026

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