The use of yeast-rich kefir grain as a starter culture in bread making

Atac F., ERTEKİN FİLİZ B., Guzel-Seydim Z. B.

JOURNAL OF FOOD PROCESSING AND PRESERVATION, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2021
  • Doi Number: 10.1111/jfpp.15242
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, Business Source Elite, Business Source Premier, CAB Abstracts, Compendex, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
  • Süleyman Demirel University Affiliated: Yes


To investigate the use of yeasts and lactic acid bacteria from natural kefir grain in bread making and its effects on dough and bread quality. The kefir grains were treated with different food-based solutions to enrich the yeast content. Three kefir samples were produced with the treated grains (KAL and SIT) and the control (KEF) kefir grains (untreated). The yeasts isolated from the kefir samples were identified as Saccharomyces cerevisiae and Kluyveromyces marxianus. The microbial and chemical properties were compared with the sourdough sample made with baker's yeast (CON). The amounts of lactic acid and acetic acid varied from 0.51 to 2.99 and 0.20 to 1.0 g/kg, respectively. The concentration of aromatic substances such as ethanol, acetaldehyde, and acetone were determined. The SIT bread achieved the highest sensory score. The kefir grains could be an important natural source in sourdough bread making.