Abstract
This chapter describes the taxonomy and biodiversity of yeasts and lactic acid bacteria (LAB) isolated from sourdoughs collected around the world. The phylogenetic position of yeast and LAB species found in sourdoughs is discussed, and important problems in taxonomic nomenclature of typical sourdough-associated species are highlighted. An overview is given of factors that may influence the taxonomic composition of sourdough ecosystems, such as geographical location, type of cereals and other raw materials, and technological process parameters. A brief history is provided of the most commonly used approaches to isolate yeast and LAB strains from sourdough samples. Finally, the main techniques for identification of sourdough yeasts and LAB are discussed, emphasizing both on conventional culture-based methods as well as on culture-independent molecular approaches.
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Notes
- 1.
A taxon (plural taxa) refers to a group of individuals that are judged to form a single unit. A taxon may or may not be given name or rank (species, genus, family, etc.). Primarily, the term serves communication about taxonomic units without the necessity or the possibility to be more specific about them.
- 2.
Synonymous names and those of asporogenic forms (asexual or anamorphic forms, not producing ascospores) are only selectively mentioned if used in the sourdough literature. It is preferable to use the name of the sporogenous form (sexual or teleomorphic form) if it exists and if no strong reasons require the explicit referral to the asporogenous form.
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Huys, G., Daniel, HM., De Vuyst, L. (2013). Taxonomy and Biodiversity of Sourdough Yeasts and Lactic Acid Bacteria. In: Gobbetti, M., Gänzle, M. (eds) Handbook on Sourdough Biotechnology. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5425-0_5
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