LAPSE:2023.6113
Published Article
LAPSE:2023.6113
Mead Production Using Immobilized Cells of Saccharomyces cerevisiae: Reuse of Sodium Alginate Beads
Miguel L. Sousa-Dias, Vanessa Branco Paula, Luís G. Dias, Letícia M. Estevinho
February 23, 2023
This work studied the production of mead using second category honey and the immobilized cells of Saccharomyces cerevisiae in sodium alginate, with concentrations of 2% and 4%, and their reuse in five successive fermentations. The immobilized cells with 4% alginate beads were mechanically more stable and able to allow a greater number of reuses, making the process more economical. The fermentation’s consumption of sugars with free cells (control) and immobilized cells showed a similar profile, being completed close to 72 h, while the first use of immobilized cells finished at 96 h. The immobilized cells did not significantly influence some oenological parameters, such as the yield of the consumed sugars/ethanol, the alcohol content, the pH and the total acidity. There was a slight increase in the volatile acidity and a decrease in the production of SO2. The alginate concentrations did not significantly influence either the parameters used to monitor the fermentation process or the characteristics of the mead. Mead fermentations with immobilized cells showed the release of cells into the wort due to the disintegration of the beads, indicating that the matrix used for the yeast’s immobilization should be optimized, considering the mead production medium.
Keywords
free cells, honey, immobilization of cells, mead, Saccharomyces cerevisiae, sodium alginate
Suggested Citation
Sousa-Dias ML, Paula VB, Dias LG, Estevinho LM. Mead Production Using Immobilized Cells of Saccharomyces cerevisiae: Reuse of Sodium Alginate Beads. (2023). LAPSE:2023.6113
Author Affiliations
Sousa-Dias ML: Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Paula VB: Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Dias LG: Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal [ORCID]
Estevinho LM: Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Journal Name
Processes
Volume
9
Issue
4
First Page
724
Year
2021
Publication Date
2021-04-20
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr9040724, Publication Type: Journal Article
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LAPSE:2023.6113
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doi:10.3390/pr9040724
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Feb 23, 2023
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CC BY 4.0
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Feb 23, 2023
 
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