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Technological Experiments for the Enhancement of Glycerol Content in High Quality Wines

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DOI: 10.4236/jacen.2014.32B008    2,275 Downloads   3,059 Views   Citations

ABSTRACT

The glycerol content of grape juices and wines has been determined by gas-chromatographic methods using silyl derivatives. The effect of different storage conditions and yeast cultures on glycerol content has been investigated. Grape juice samples with different starting D-Glucose concentrations have been treated with several additives (HPO42?, S2O52?, NADH and HSO3?). Significant glycerol concentration enhancement has been detected in the case of the addition of NADH (5.14 g/L), however the presence of HSO3? prevented the excessive glycerol formation (1.21 g/L).

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Csutorás, C. , Hudák, O. , Rácz, K. and Rácz, L. (2014) Technological Experiments for the Enhancement of Glycerol Content in High Quality Wines. Journal of Agricultural Chemistry and Environment, 3, 48-52. doi: 10.4236/jacen.2014.32B008.

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