Improving downstream processes to recover tartaric acid, tartrate and nutrients from vinasses and formulation of inexpensive fermentative broths for xylitol production

Journal of the Science of Food and Agriculture
José Manuel SalgadoJosé Manuel Domínguez

Abstract

Vinasses, the main liquid wastes from the distillation process of grape marc and wine lees, are acidic effluents with high organic content, including acids, carbohydrates, phenols, and unsaturated compounds with high chemical oxygen demand, biological oxygen demand and solid concentrations. These wastes can be revalued to provide additional benefits when they are employed as feedstock of some compounds including tartaric acid, calcium tartrate and economic nutrients for the elaboration of fermentable broths. This study attempts to recover tartaric acid and calcium tartrate from vinasses. All the tartaric acid initially solubilised was recovered in both processes. The residual streams can be successfully employed as economic nutrients for the xylose to xylitol bioconversion, achieving higher global volumetric productivities (Q(P, xylitol) = 0.232 g L(-1) h(-1)) and products yields (Y(xylitol/S) = 0.57 g g(-1)) than fermentations carried out using commercial nutrients (Q(P, xylitol) = 0.193 g L(-1) h(-1) and Y(xylitol/S) = 0.55 g g(-1) respectively). Tartaric acid can be recovered from vinasses in the form of tartaric acid crystals and calcium tartrate. The residual streams generated in the process can be used as economic nutrien...Continue Reading

References

May 8, 2003·Bioresource Technology·C NegroA Miceli
Dec 4, 2003·Journal of Agricultural and Food Chemistry·Sandra C DiéguezEsperanza F Gómez
Dec 25, 2003·Bioresource Technology·V LouliK Magoulas
May 27, 2005·Applied Biochemistry and Biotechnology·Luís C DuarteFrancisco M Gírio
Aug 18, 2005·Journal of Agricultural and Food Chemistry·Sandra C DiéguezEsperanza F Gómez
Jun 8, 2006·Journal of Agricultural and Food Chemistry·Beatriz RivasJuan Carlos Parajó
Sep 28, 2006·Journal of Agricultural and Food Chemistry·Beatriz RivasJosé Manuel Domínguez
Nov 18, 2006·Bioresource Technology·Dimitris P MakrisNikolaos K Andrikopoulos

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Citations

Aug 15, 2012·Journal of Agricultural and Food Chemistry·Eleni NaziriMaria Z Tsimidou
Jul 15, 2011·Waste Management·R Devesa-ReyA B Moldes

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