"Spiritu re fascitrari" is a Sicilian alcoholic beverage obtained through distillation of a decoction of spontaneously fermented honey by-products (FHP). The production process often leads to sensorial defects due to the unstable alcoholic fermentation. The objective of this work was to select Saccharomyces cerevisiae strains from FHP to be used as starter in decoction fermentation. Based on chemical, microbiological and technological data, from a total of 91 strains three S. cerevisae were selected for further testing to produce FHP at laboratory scale level. After FHP distillation, the analysis of volatile organic compounds showed a complex mixture of sensory active molecules, mainly alcohols and aldehydes. Among the alcohols, 3-methyl-1-butanol, 2-methyl-1-butanol, phenylethyl alcohol, hexadecanol and octadecanol were found at the highest concentrations. Among the carboxylic acids, acetic acid was mainly detected in the spontaneously fermented samples. FHP fermented with the three selected strains were not characterized by the presence of off-odors or off-flavours. The results obtained in this work demonstrate that the selected S. cerevisiae strains are promising starters to stabilize the production of distilled alcoholic beverages produced from honey by-products.
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http://dx.doi.org/10.1016/j.fm.2021.103968 | DOI Listing |
Metab Eng
January 2025
Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; Jiangsu Province Basic Research Center for Synthetic Biology, Jiangnan University, Wuxi 214122, China. Electronic address:
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Institute of Bioinformatics, University of Georgia, 120 E. Green St., Athens, GA, USA.
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Biochemistry Program, The University of the South, Sewanee, TN, USA.
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Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.
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View Article and Find Full Text PDFJ Ind Microbiol Biotechnol
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National Center for Agricultural Utilization Research, Peoria, IL 61604, USA.
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