Evaluation of thermally-dried Kluyveromyces marxianus as baker's yeast
2009
Dimitrellou, Dimitra | Kandylis, Panagiotis | Kourkoutas, Yiannis | Koutinas, Athanasios A. | Kanellaki, Maria
The aim of the present study was to evaluate the use of thermally-dried Kluyveromyces marxianus as baker's yeast. Bread samples produced by thermally-dried K. marxianus were compared with samples produced by wet K. marxianus culture and by commercial baker's yeast. The type of the culture had no effect on loaf weight, loaf volume, specific loaf volume, density or moisture loss, in contrast to pH, total titrable acidity (TTA), and moisture content. The use of thermally-dried K. marxianus resulted in lower pH values and higher TTA, while the bread samples showed higher resistance to spoilage as counts of moulds and yeasts were significantly lower during preservation. The SPME GC/MS analysis of volatiles and the preliminary sensory evaluation showed no significant differences in the profile of aroma-related compounds or overall quality of the tested samples.
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