Abstract
Schizosaccharomyces yeasts can be used for deacidification of grape musts. To this aim, we studied malic acid degradation by yeasts included in double layer alginate beads in a bubble column reactor. Use of immobilized micro-organisms allowed a continuous process with high dilution rates giving a deacidification capacity of 0.032 g of malate/hour/dm3/g of beads. The pneumatic agitation was very convenient in this case.
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Abbreviations
- D h−1 :
-
Dilution rate for continuous culture
- τ h:
-
Residence time for continuous culture
- dM/dt kg/(m3 · h):
-
Rate of degradation of malic acid
- dS/dt kg/(m3 · h):
-
Rate of consumption of glucose
- μ max h−1 :
-
Maximal specific rate of growth
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Taillandier, P., Riba, J.P. & Strehaiano, P. Malate degradation by Schizosaccharomyces yeasts included in alginate beads. Bioprocess Engineering 7, 141–144 (1991). https://doi.org/10.1007/BF00369426
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DOI: https://doi.org/10.1007/BF00369426