Dense tracking of the dynamics of the microbial community and chemicals constituents in spontaneous wheat sourdough during two months of backslopping

Mugihito Oshiro, Rie Momoda, Masaru Tanaka, Takeshi Zendo, Jiro Nakayama

研究成果: ジャーナルへの寄稿記事

抄録

Wheat sourdough is a common traditional fermented food that is produced worldwide. However, product quality of spontaneous sourdough is not easy to control because it depends on natural fermentation and backslopping, about which little is known, notably after ten backslopping steps. To this end, we tracked the spontaneous fermentation of three sourdoughs made from wheat flours during 32 backslopping steps for 60 days. At 24 time points, the microbial community was analyzed by both culture-dependent and culture-independent methods and its chemical constituents were assessed. Dynamic changes were observed in the microbial community, which showed a common succession pattern among the three sourdoughs at the bacterial family level and differences at the species level. The bacterial communities evolved through three phases that were driven by different groups of lactic acid bacteria (LAB) species. The dynamism among the metabolites also differed, depending on the species composition of the LAB and yeast communities. In one sourdough, the growth of Saccharomyces cerevisiae was detected along with a concentration of increased ethanol, while in the other two sourdoughs, Wickerhamomyces anomalus was detected without ethanol production. Regarding the LAB communities, two sourdoughs were eventually co-dominated by Lactobacillus plantarum and L. brevis, while the other sourdough was eventually dominated solely by the heterolactic fermentative bacterium Lactobacillus fermentum, and ethanol was produced at the same level as lactic acid. Further research is needed to determine the bacterial and yeast species involved in the fermentation of sourdough, to help improve the design and quality control of the final product.

元の言語英語
ページ(範囲)170-176
ページ数7
ジャーナルJournal of Bioscience and Bioengineering
128
発行部数2
DOI
出版物ステータス出版済み - 8 1 2019

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Lactic acid
Triticum
Lactic Acid
Bacteria
Yeast
Fermentation
Ethanol
Yeasts
Lactobacillus fermentum
Lactobacillus plantarum
Flour
Metabolites
Quality Control
Quality control
Saccharomyces cerevisiae
Food
Growth
Chemical analysis
Research

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

これを引用

Dense tracking of the dynamics of the microbial community and chemicals constituents in spontaneous wheat sourdough during two months of backslopping. / Oshiro, Mugihito; Momoda, Rie; Tanaka, Masaru; Zendo, Takeshi; Nakayama, Jiro.

:: Journal of Bioscience and Bioengineering, 巻 128, 番号 2, 01.08.2019, p. 170-176.

研究成果: ジャーナルへの寄稿記事

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