The application of the Sensomics concept on a freshly prepared yeast dumpling resulted in 41 odorants. Quantitations by means of stable isotope dilution assys allowed the preparation of an aroma recombinant and showed that the yeast metabolites 3 methyl-1-butanol and 2-phenylethanol are present in the highest concentrations. A time-resolved PTR-MS study on odorant release from crumbs of breads prepared with different recipes and after different storage times indicated a strong influence of the texture on the aroma release, with a softer crumb showing a stronger odorant binding.
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